User talk:Anandrajramnani

฿Important Topics Choosing the right topics for maximum study is very important not only for clearing JEE but also for getting a high rank. Lots of topics in JEE syllabus require a huge lot of time, incomparable to that required by other topics. Spending too much time on these topics and ignoring other topics leads to drastic failure in rank.Lots of topics in JEE are very easy and are of NCERT level.The key to topping JEE is to maximize your scoring in these topics which boosts the rank. Many such topics require considerably less time and is much much less than the time required by certain other topics with proportionate marks.You should spend more time on these topics and try to earn full marks in such topics.I list a few of these topics: MODERN PHYSICS AND ELECTRONICS :most of the questions easy and similar to past JEE questions. WAVE OPTICS :most of the questions are similar to past JEE questions INORGANIC CHEMISTRY AND GENERAL CHEMISTRY :most of the questions are of NCERT level and are simple. SOLID STATE :Most of the questions are very easy. PROBABILITY AND DIFFERENTIATION :most of the questions are simple and NCERT level. DIFFERENTIAL EQUATIONS :most of the questions are similar to past JEE questions. By spending legible time on these topics ,the scoring in JEE will be boosted and only will you clear JEE but also get a high rank.But beware, don't neglect there other topics. In topics like mechanics, electricity, physical chemistry and analytical geometry , if the concepts are clearly understood then many of the questions pertaining to these topics can be easily handled.My next topic discusses the marks and the rank which can be expected with those marks. Examination Strategies For IIT JEE Revision related tips •	About 20 days before the JEE Screening Test, start getting acquainted with a wide variety of topics to improve the range of numericals you can attempt. Do not attempt lengthy questions, and focus instead on objective, numerical questions to practice as many types of questions as you can. You should look at breadth rather than depth in these 20 days. •	Revise all important concepts and formulae, so that they are on your tips and come to you without any effort or thought. •	The screening paper gives equal weightage to all three subjects â€“ and so should your screening preparation. •	Remember - The screening test has negative marking for wrong answers. So your familiarity with concepts will be crucial if you take the calculated risk of logical guessing. Things to keep in mind one day before the examination: •	You need at least 6-8 hours of sleep before the examination to keep yourself fresh while solving questions. •	Eat a light meal so that you do not feel drowsy or lethargic during the paper. •	Revise only those topics that you have studied earlier. Do not start reading any new topics just before the examination, since this will be a waste of time and you may lose the information you have already grasped. •	You should reach the test center at least half an hour before the exam and if you haven't seen the center before, then you must go and visit the center on the day before the exam. Note: If your examination center is in another city- o	Reach the city positively on the day before the exam. o	Ensure the place of your stay there is calm, clean and conducive to study. o	In actuality it does not make any difference whether the center is in your city or in some other city. So get the fear of an unknown city out of your mind. •	Never go to the center on an empty stomach. Always keep biscuits, fruits etc. handy. •	Some students complain of nausea or headache close to the test. So keep relevant medicine handy. •	If you plan to ride your own vehicle to the center, ensure it is in proper running condition and has enough fuel in its tank. •	If you do not have a vehicle, ensure a means of traveling that reaches you to the center well in time, and give at least half an hour of time for unforeseen delays like traffic jams and rush hour traffic. •	Keep a wristwatch, your permission letter, a pen, two pencils (sharpened at both ends), an eraser, a sharpener and other relevant stationary systematically with you. Some important points to keep in mind during the examination General Instructions •	Synchronize your wristwatch with the center clock. •	Open your permission letter and keep it on your table. •	Do not use a red pen. Points regarding presentation •	Start attempting the question paper only after reading the instructions given on it very carefully. •	While attempting questions, go on segregating them by the A, B, C method A :These questions are from topics that you have prepared well, and you can clearly comprehend the meaning of these questions. You have done questions containing similar concept earlier and you are confident that you will be able to solve these. B :You know you can solve these questions but they are time-consuming, nevertheless you are confident you will be able to crack them when you come back to them. These questions should be attempted in the second round of question attempting, i.e. when you have solved all questions marked with a B. C :You don't know head or tail of these questions and you should not waste time attempting them. •	Attempting to solve all questions in haste increases the chances of error. It is better to solve slightly fewer questions faultlessly. •	Never attempt two questions at the same time. Concentrate on one question at a time. •	Carry out all rough work only in the space given in the paper. •	If you need a diagram to understand questions in say physics or coordinate geometry etc., do make one. •	Use the value of constants given in the paper in solving a numerical. If the value is not mentioned, use the one you remember. •	Give all three subjects equal time - i.e. 50 minutes each for physics, chemistry and mathematics. •	While attempting the answers, do not shade the answer key immediately. Instead, tick your response with a pencil 4 on the answer key. •	Keep marking questions with A, B, C in the first round of solving the paper. All questions should be segregated into one of these three categories. This saves valuable time later. •	Fill out the answer key 30 minutes before final time. Fill out the responses to questions attempted after this directly in the answer key. Course Planning Course planning is essential in the sense ,that it can get you at the top in rank list.This planning should be done by the student in 11th class itself. From this year, a screening test is being conducted and so proper planning becomes all the more important.Have a look at all the topics and shortlist topics,and months wherein you plan to complete them.Finishing syllabus atleast a month before the exam is essential.The summer vacations in 12th class are the best time to finish a huge lot of syllabus.I can suggest the following course plan for students in 11th class. JUNE TO OCTOBER : Mathematical concepts used in Physics, Basic mechanics, stoichiometry, general chemistryatomic structure, chemical bonding, periodic table, algebra---number theory, quadratic equations, progressions. OCTOBER TO JANUARY :Complete Mechanics, waves, Physical Chemistry--equilibrium, heat, kinetics, thermochemistry, electrolysis, algebra -induction, complex numbers, trignometry. JANUARY TO MAY : Heat, fluid mechanics, gravitation, Inorganic chemistry---properties and metallurgy of metals and non metals, gas laws, analytic geometry, permutations and combinations, binomial theorem. MAY TO AUGUST : Electrostatics and electricity, electrochemistry, solutions, solids, qualitative analysis, transition metals, differentiation and integration. AUGUST TO NOVEMBER : magnetism, optics, modern physics, organic chemistry, differential equations, probability, vectors. NOVEMBER TO DECEMBER : FINAL REVISION By following this plan,course will be finished in time and revision can also done,to ensure maximum success in JEE.To maximize your potential you have to planned .My next topic tells you about certain important topics to which special interest should be given. Temperal Balance •	Keep your cool during the paper. If you feel you are getting flustered, close your eyes for some time to regain your composure and concentration. •	Keep yourself in a cheerful and positive mood. •	If you feel tension rising during the paper, take deep breaths to release tension. •	Do not get demotivated or overexcited on seeing the question paper. Keep your balance. Demotivation will make even easy questions appear tough and overconfidence will make you commit silly mistakes. •	Do not get depressed by tough questions. Instead remind yourself that these questions are tough for every aspirant. •	Do not get emotionally attached to any question. It is not necessary that you will be able to solve a question from topics you have prepared well. •	Do not worry about the minimum cut-off marks for JEE. No one knows about the cut-off for sure, but no one has ever been rejected on the basis of any subject-wise minimum cut-off. •	Do not argue with anyone about anything before the test. •	Have faith in God and in yourself. Whatever happens to you will be for the best. Keep depressing thoughts away •	First of all, realize that you are not the only one facing anxiety. Each IIT-JEE aspirant is facing the same dilemma. •	Also realize that if you have studied even 60% of JEE syllabus properly, you need not harbour negative thoughts. Your success at the screening test is ensured. •	Whenever you feel tensed, start a countdown from 50 to 1. It will help you release tension. •	Light stretching exercise also helps reduce pent-up tension. •	If you are feeling tensed, do not suffer alone. The company of friends and light chit-chat will help you divert your mind from negative thoughts. Starting Preparation For IIT JEE The best time to start preparation is at the beginning of 11th class. Students are fresh after the break after boards and a lot more can be learnt. Students who start late often end up leaving some key topics of 11th class JEE syllabus. Also, if you start your preparation in 12th class then the amount of hard work is increased manifold due to additional pressure of 12th boards, so chances of getting a high rank in JEE are decreased. There is a big transition from the mugging up study of 10th class to more understanding based study of 11th class. So you shouldn't get bogged down by seeing the level of complexity in JEE exam. The first two or three months should be spent in revising your basic concepts (topics like algebra, mecanics) which had been taught in 9th class. Concepts in topics like algebra, mechanics and stoichiometry should be studied in great detail as they also form the basis for other topics and are very scoring. There should be no doubt in your mind about these concepts. For these, develop the habit of inquisition. Clear all your doubts so that mentally you feel confident tackling any concept. A key in this area is problem-solving. Regular problem solving not only strengthens the concepts, but also increases your mental sharpness which is must for JEE.Initially problems of low level should be tried and only when you have mastered them, you should go on to solving intricate JEE type problems. You should have systematic plan for the preparation of JEE. Regular hours should be allotted to mastering concepts and problem-solving. It is not necessary to memorise the lessons and formulae. Understand the derivations of formulae and apply the formulae to solving problems. Slowly these formulae will settle down in your brain and you will be able to recall them under any situation. What is required is a clear understanding and an easy familiarity with the concepts and laws. Maximum attention should be paid to solving problems.Try to be analytical rather than being intutive. Remember that hardwork pays! You should first take up a problem and try to solve it yourself. You should understand what is given and what is required, recall what principles, laws, equations are involved. Don't hurry to see the solution as I doesn't help you to learn. Only when you've pondered over it over a long time and unable to see any light, should you see the solutions. You would be insulting yourself and seriously hurting your chances of success if you skip these problems or make half-hearted attempts in solving them. An other very important aspect of your JEE preparation will be the coaching institute, whose importance and selection procedure will be delved into in the next section. Selection Of Coaching Institutes This is one of the most important topics which often decides your rank and hence your career. Hence discussion on this topic is indispensible. IIT- JEE coaching has become far too commercialised. Hundreds of coaching institutes have come into existence, claiming hundreds of ranks. It is the student who falls prey to all these gimmicks and often ends up with either a low rank of failure at JEE. So before joining any coaching institute you should see that the institute should have a strong reputation. Some tips for choosing the right institute are: •	See how old the institute is. •	How many students of the coaching institute got into IIT last year. (Ideally should be greater than 40). Ask the institute to give phone nos. of the successfull students, so that you can confirm. •	Talk to 3 or 4 students(should be studious)who are already studying in that institute.Ask them what they feel about the teachers and the management(very important!) of that institute. •	See the experience of the faculty •	See the level of problems in the assignments and whether the study material is regularly updated or not. •	By what do they plan to finish the syllabus •	Finally, see if your parents can pay the fees(generally very huge). For students living in areas with no coaching institutes or transportation problems, a postal coaching is a must. Some tips for postal coaching are: •	Most important tip is that the coaching institute that you choose should have a very strong reputation. •	See whether the sets are despatched on time. •	Talk to students who have already enrolled for that institute, and what they feel about the depth of coverage and problem sets. •	See how many postal tests, on-the-spot tests and lecture sessions are there. These are must for removing doubts and strengthening the concepts.

IMPORTANT QUESTION ON IITJEE ORGANIC PART
Ques 1 -12 [1.5 marks] / Ques 13-25 [3 marks] / Ques 26-40 x 4.5 marks

-ve marks are one third

Test duration 2 hour

1.Which of the following compounds can exhibit tautomerism?

[1]

[2]

[3]

[4]

2.Tautomerism is not exhibited by:

(1)	C6H5-CH=CH-OH (2)

(3)

(4)

3.Which will show tautomerism:

[1]

[2]

[3]

[4]

4.Tautomerism is exhibited by

(1)	(CH3)3CNO (2)	(CH3)2NH

(3)	R3CNO2 (4)	RCH2NO2

5.Total possible structural isomers(not stereo) of C4H6 are:

(1)	4	(2)	6

(3)	9	(4)	12

6.Increasing order of expected enol content

(1)	CH3COCH2CHO>-CH3COCH3

CH3CHO>CH3COCH2COCH3

(2)	CH3COCH2COCH3>

CH3COCH2CHO>CH3COCH3>CH3CHO

(3)	CH3CHO>CH3COCH3

>CH3COCH2CHO>CH3COCH2COCH3

(4)	CH3COCH3>CH3COCH2COCH3

>CH3CHO>CH3COCH2CHO

7.Increasing order of expected keto content

(1)	CH3COC2H5>CH3CHO

>CH3COCH3>CH3COCH2COCH3

(2)	CH3COCH3>CH3CHO

>CH3COC2H5>CH3COCH2COCH3

(3)	CH3CHO>CH3COC2H5

>CH3COCH3>CH3COCH2COCH3

(4)	CH3COCH2COCH3>CH3CHO

>CH3COCH3>CH3COC2H5

8. Hydrogenation of the above compound in the presence of posioned palladium catalyst gives:

[1]	an optically active compound

[2]	an optically inactive compound

[3]	a reacemic mixture

[4]	a diastereomeric mixture

9.Which of the following is an example of substitution reaction:

[1]

[2]

[3]

[4]	None of the above

10.List the following alkoxide nucleophile in decreasing order of their SN2 reactivity:

(a) Me3CO- (b) MeO-

(c) MeCH2O- (d) Me2CHo-

(e)

[1]	b>c>e>d>a

[2]	e>c>b>a>d

[3]	a>e>b>c>d

[4]	c>e>a>b>c

11.Which will not undergo substitution bySN1:

(1) CH2X

(2)

(3)

(4)

12.Identify the set of reagents/reaction conditions 'X' and 'Y' in the following set of transformations:

(1)	X=dil.aq.NaOH,20oC,Y=HBr

(2)	X=conc.alcoholic NaOH,80oC,Y=HBr,CH3COOH,20oC

(3)	X=dil.aq.NaOH,20oC,Y=Br2,CHCl3,0oC

(4)	X=conc.alc.NaOH,80oC,Y=Br2,CHCl3,0oC

13. The nodal plane in the -bond of ethene is lacated in:

(1) The Molecular

(2) A plane parallel to the molecular plane

(3) a plane perpendicular to the molecular plane which bisects the carbon-carbon sigma bond at right angle.

(4) a plane perpendicular to the molecular plane which contains the carbon-carbon sigma bond.

14. (CH3)4+N is neither an electrophile or a nucleophile because it:

(1) Does not have electron pair for donation as well as cannot attract electron pair

(2) Neither has electron pair available for donation nor can accommodateelectron since all shell of N are fully occupied.

(3) Can act as Lewis acid or base.

(4) none of these

15. In the dehydration reaction:

the hybridization state of carbon changes from:

[1]	sp3 to sp2 [2]	sp to sp

[3]	sp2 to sp	[4] sp to sp3

16. A compound X (C5H8) reacts with ammoniacal AgNO3 to give a white precipitate,and on oxidation with hot alkaline KMnO4 gives the acid,(CH3)2CHCOOH.Therefore,X is:

(1) CH2=CHCH=CHCH3

(2) CH3(CH2)2C CH

(3) (CH3)2 CH-C CH

(4) (CH3)2C=C=CH2

17.What is the decreasing order of the strength of the bases OH-,NH2-,H-C C- and CH3CH2-?

(1)CH3-CH2-> NH2-> H-C C-> OH-

(2)H-C C-> CH3-CH2-> NH2-> OH-

(3)OH-> NH2-> HC C-> CH3-CH2-

(4)NH2-> H-C C-> OH-> CH3-CH2-

18.Water can be added across a triple bond in the presence of :

(1)	acidic medium (2)	alkaline medium

(3)	neutral medium (4)	acid and HgSO4

19. Among the following,the compound that can be most readily sulphonated is:

(1)	benzene (2)	nitrobenzene

(3)	toluene (4)	chlorobenzene

20.Which of the following reagents cannot be used as the basis for a simple chemical test for distinbuishing but-1-ene from CH3CH2CH2CH2OH?

(1) Br2/CCl4

(2) Dilute aqueous KMnO4

(3) CrO3/aqueous H2SO4

(4) Na in liquid NH3

21. Benzyl chloride (C6H5CH2Cl)can be prepared from toluene by chlorination with:

(1)	SO2Cl2 (2)	SOCl2

(3)	Cl2 (4)	NaOCl

22.Which of the following reactions are not expected to give

in yields of more than 50%?

[1]

[2]

[3]

[4]	None of these

23. Which of the following will give trans-diols

[1]

[2]

[3]

[4]

24. The final in the following sequence of reaction is:

(a) CH2=CH-CH=CH2

(b) HC C-CH3

(c) CH2=CH-CH3

(d) CH-CH2-CH3

25. Which of the following orders regarding the acidity of aromatic acids is correct?

(1) p-nitrobenzoic acid < benzoic acid < p-anthranilic acid

(2) p-nitrobenzoic acid > benzoic acid > p-anthranilic acid

(3) p-nitrobenzoic acid > benzoic acid < p-anthranilic acid

(4) p-nitrobenzoic acid p-anthranilic acid

26.Which of the following are correct?

[1]

[2]

[3]

[4]

27.

[1]

[2]

[3]

[4]

28.The following reaction is called

(1)	Michael addition reaction

(2)	Diels-Alcr reaction

(3)	Wolff-Kishner reaction

(4)	None of above

29. Nitrobenzene can be prepared from benzene by using a mixture of concentrated HNO3 and concentrated H2SO4.In the nitrating mixture,HNO3 acts as:

[1]	base [2]	acid

[3]	reducing agent [4]	catalyst

30.Which of the following structures will not have 4 electrons?

I

II

III

IV

(1)	I (2)	II

(3)	III (4)	IV

31. The most strained cycloalkane is:

(1)	Cyclopropane (2)	Cyclobutane

(3)	Cyclopentane (4)	Cyclohexane

32.Among the following statements on the nitration of aromatic compounds,the false one is:

[1]The rate of nitration of benzene is almost the same as that of hexadeuterobenzene

[2]The rate of nitration of toluene is greater than that of benzene

[3]The rate of nitration of benzene is greater than that of hexadeuterobenzene

[4]Nitration is an electrophilic substitution reaction.

33.Which of the following conpounds will exhibit geometrical isomerism?

[1] But-1-ene

[2] Oxime of benzaldehyde

[3] Oxime of acetone

[4] Both (b) and (c)

34. The halogen which is more reactive in the halogenation of alkanes in sunlight is:

(1)	Chlorine (2)	Bromine

(3)	Iodine (4)	All are equal

35.The reduction of an alkyne to alkane using lithium metal in liquid ammonia as solvent results into:

[1] cis addition of hydrogen atoms

[2] trans addition of hydrogen atoms

[3] Both cis and trans additions of hydrogen atoms.The relative amount of the two depends on temperature.

[4] Both cis and trans additions of hydrogen atoms.The relative amount depend on the nature of alkyne.

36.Which cycloalkane has the lowest heat of combustion per CH2 group?

[1]

[2]

[3]

[4]

37.Which of the following will give three mono-bromo derivatives?

[1] CH3CH2CH2CH(CH3)CH3

[2] CH3CH2C(CH3)2CH3

[3] CH3CH(CH3)CH(CH3)CH3

[4] All can give

38.The addition of HBr to an alkene in the presence of peroxide is the example of:

[1] electrophilic addition reaction

[2] nucleophilic addition reaction

[3] free radical addition reaction

[4] the formation of carbonation as an intermediate

39.The major product obtained in the reaction

is expected to be :

(1)

(2)

(3)

(4)

40.The treatment of with NalO4 or boiling KMnO4 produces:

[1]CH3COCH3+CH3COOH

[2]CH3COCH3+CH3CHO

[3]CH3CHO+CO2

[4]CH3COCH3 only

41.What are the products obtained by ozonolysis of RCH=CR1R2

[1]	R1CH2CH2R2 [2]	R2CO

[3]	R1COR2 [4]	none of these

42.Which of the following compounds do not exhibit geometrical isomerism?

(1)CH3CH=CH-COOH

(2)Br-CH=CH-Br

(3)C6H5CH=NOH

(4)

43. Choose the compound which is not a nucleophile:

[1]	:OH- [2]	:CN-

[3]	:C- CR	[4] :CCl2

44. Which of the following order regarding the acidity of aromatic acids is correct?

(1) benzoic acid< p-toluic acid< p- hydroxybenzoic acid

(2) benzoic acid> p-toluic acid> p- hydroxybenzoic acid

(3) benzoic acid> p-toluic acid< p- hydroxybenzoic acid

(4) benzoic acid< p-toluic acid> p- hydroxybenzoic acid

45. The treatment of benzene with benzoyl chloride in the presence of AlCl3 gives:

(1)	benzaldehyde (2)	benzophenone

(3)	diphenyl (4)	cyclohexane

46.The conversation

can be effected using:

[1]	Br2/CCl4 [2]	Br2/H2O

[3]	Br2/Fe [4]	Br/benzoyl peroxide

47.Methane is obtained when:

[1] sodium propionate is heated with sodalime

[2] idomethane is reduced

[3] magnesium carbide reacts with water

[4] potassium acetate is electrolysed

48.1,2-dimethylcyclopentane can be represented as I,II and III.

49.Which of the following are cumulative dienes?

[1]CH3-CH=C=CH-CH3

[2]CH2=CH-CH=CH2

[3]CH2=CH-CH2-CH=CH2

[4]None of these

50.Which of the following is Wurtz-Fittig reaction ?

[1]

[2]

[3]

[4]

51.Orbital angular momentum of an electron in 2s orbital is -

[1]

[2]	zero

[3]

[4]

52.A Mo atom in its ground state has a 4d5 5s1 and a Ag atom 4d10 5s1 configuration.This is because a shell which is half filled or completely filled is particularly:

[1] strongly exchange destabilised

[2] weakly exchange stabilised

[3] weakly exchange destabilised

[4] strongly exchange stabilised

53.An f-shell containing 6 unpaired electron have no. of exchange

[1]	6	[2]	9

[3]	12	[4]	15

54. Choose the arrangement which show the increasing value of e/m for e,p,n and particle:

[1]	n< <p<e [2]	e<p< <n

[3]	n<p<e< [4]	p<n< <e

55.In which of the following orbital probability of finding electron in XY plane will be zero

[1]	pz [2]	dyz

[3]	dzx [4]	px

56.After np6 electronic configuration,the next orbital filled will be:

[1]	(n+1)d [2]	(n+1)s

[3]	(n+1)f [4]	none of the above

57.Which of the following transitions are not allowed in the normal electronic emission spectrum of an atom?

[1]	2s Is	[2] 2p Is

[3]	3d 4p [4]	5p 3s

58.The de Broglie wavelength relates to applied voltage as :

[1]

[2]

[3]

[4]	both (b) and (c)

59. The line spectra of two elements are not identical because:

[1] The elements do not have the same number of neutrons

[2] They have different mass numbers

[3] Their outermost electrons are different energy levels

[4] all of the above

60.Four different sets of quantum numbers for 4 electrons are given below:

e1 = 4,0,0- ,e2 = 3,1,1,-

e3 = 3,2,2+ ,e4 = 3,0,0,+

The order of energy of e1,e2,e3 and e4 is:

[1]	e1>e2>e3>e4 [2]	e4>e3>e2>e1

[3]	e3>e1>e2>e4 [4]	e2>e3>e4>e1

61.In the following transition, which is correct

[1]	E3-1=E3-2-E2-1 [2]

[3]	U3=U2+U1 [4]	All of the above

62.Which orbital is represented by wave function 310?

[1]	3d [2]	3p

[3]	3s [4]	Data is insufficient

63.The set of quantum numbers for 19th electron of chromium (Z=24) is:

[1]	4,0,0,+ 	[2]	4,1,-1,+

[3]	3,2,2,+ 	[4]	3,2,-2.+

64.When principal quantum number n increases then the difference between two adjacent energy levels

[1] Remain constant

[2] Increases in Hydrogen atom will

[3] Increases and decreases both

[4] Decreases

65.For the atomic radius of the order of 10-8 cm and nuclear radius of the order of 10-13 cm.The fraction of atom occupied by the nucleus will be:

[1]10-13 x atomic volume

[2]10-14 x atomic volume

[3]10-15 x atomic volume

[4]10-16 x atomic volume

66.For a particular value of azimuthal quantum number the total number of magnetic quantum number value are given by

[1]	l= [2]	l=

[3]	l= [4]	l=

67.Which of the following have minimum Debroglie wave length

[1]	Electron [2]	SO2

[3]	CO2 [4]	Proton

68.In the ground state of Cu2-,the number of shells occupied ,subshells occupied,filled orbitals and unpaired electrons respectively are:

[1]	4,8,15,0	[2]	3,6,15,1

[3]	3,6,14,1	[4]	4,7,14,1

69.Which one of the following will not form amphoteric oxide?

[1]	Al [2]	Pb

[3]	Sn [4]	Ba

70.Which of the following electronic configuration is correct for outer most orbit of Alkali metal

[1]	(n-1)s2,p2,ns2p1 [2]	(n-1)s2p2d10,ns1

[3]	(n-1)s2 p6,ns1 [4]	ns2p6d1

71.Correct order of Electronegativity is-

[1]	O+>O>O- [2]	O>O+>O-

[3]	O+>O->O [4]	O->O>O+

72. The chloride of an element A given neutral solution in Water.The element A belongs to the group-

[1]	First Group [2]	Third Group

[3]	Fifth Group [4]	First Transition Series

73.Correct order of b.p. is-

[1]CO2< CS2< CCl4< H2O

[2]H2O< CCl4< CO2< CS2

[3]CS2< CO2< CCl4< H2O

[4]H2O< CO2< CS2< CCl4

74.Which of the following have maximum difference in radius

[1]	Cr,Mn [2]	Co,Ni

[3]	K,Ca [4]	Mn,Fe

75.Which of the following has maximum density-

[1]	Pb [2]	Hg

[3]	Ir [4]	Os

76.Which one is most stable:-

[1]	H [2]	H+

[3]	H2+ [4]	H-

77.Which one is strongest reducing ion?

[1]	F- [2]	Cl-

[3]	Br- [4]	I-

78.Hydration energy of Mg2+ is greater than the Hydration energy of

[1]	Be2+ [2]	Na+

[3]	Al3+ [4]	Cr3+

79.Which of the following has maximum non metallic Character?

[1]	Be [2]	B

[3]	Mg [4]	Al

80.The correct order of increasing electronegativity is?

[1]	P<Bi<S<Cl [2]	Cl<S<Bi<P

[3]	Bi<P<S<Cl [4]	S<Bi<P<Cl

81.Which concept best explains the fact the o-nitrophenol is more volatile than p-nitrophenol?

[1]	Resonance [2]	Hyperconjugation

[3]	Hydrogen bonding [4]	Setric hindrance

82.Bond order of NOmolecule is :-

[1]	1	[2]	2

[3]	3	[4]	2.5

83.Sugar solution in water have

[1]	Free molecules [2]	Free atoms

[3]	Free Ions [4]	(a) and (b) both

84.Which one of the following has positive dipole Moment?

[1]	CCl4 [2]	C6H6

[3]	BF3 [4]	HF

85. In [Cu(NH3)4]SO4,Hybridization of Cu is:-

[1]	dsp2 [2]	sp3d2

[3]	sp2 [4]	sp3

86.In CH3COCl,the orbital used for bond formation by the carbon which is surrounded,is

[1]	sp [2]	sp2

[3]	sp3 [4]	sp3d

87.Hydrogen bond is not present in-

[1]	Glycerine [2]	water

[3]	H2S [4]	HF

88.Which of the following has pyramidal shape?

[1]	NO3- [2]	H2O

[3]	H3O+ [4]	NH4+

89.Resonance hybrid of Nitrate ion is :-

[1]

[2]

[3]

[4]

90.Electronic formula of COCl2 is :-

[1]

[2]

[3]

[4]	None of these

91.Which of the following species contain covalent and co-ordinate bonds?

[1]	N2H5+ [2]	BaCl2

[3]	H2O [4]	HCl

92.Which one has maximum boiling point :-

[1]	Acetone [2]	Diethyl Ether

[3]	Chloroform [4]	Ethyl Alcohol

93.Correct decreasing order of Bond Angle in following Hydrides is :-

[1] NH3>PH3>AsH3>SbH3

[2]NH3>AsH3>SbH3>PH3

[3]PH3>NH3>AsH3>SbH3

[4]SbH3>AsH3>PH3>NH3

94.Which have unpaired electron in KO2,AlO2-,BaO2 and NO2+

[1]	KO2 and AlO2- [2]	NO2+ and BaO2

[3]	Only BaO2 [4]	Only KO2

95.N2 is less reactive than CN- due to

[1] More electron in orbitals

[2] difference in spin quantum number

[3] Absence of dipole moment

[4] None of these

96. Which one has maximum melting point :-

[1]	Alkali metal [2]	Alkaline earth metal

[3]	Transition metals [4]	All have equal

97.In the following which one is Lewis Acid:-

[1]	BF3 [2]	NH3

[3]	H2O [4]	R-O-R

98.Increasing order of bond strength in O2,O2-O22- and O2+ is -

[1] O2+< O2< O2-< O22-

[2]O2< O2+< O2-< O22-

[3]O2-< O22-< O2+< O2

[4]O22-< O2-< O2< O2+

99.Which of the following molecules has maximum C-C atomic distance :-

[1]	C2H6 [2]	C2H4

[3]	C2H2 [4]	C6H6

100.Which one of the following is soluble in water?

[1]	CCl4 [2]	CS2

[3]	CHCl3 [4]	C2H5OH

Answers [need to be logged in]

Welcome
Hello, Anandrajramnani, and welcome to Wikipedia. Thank you for your contributions. I hope you like the place and decide to stay. If you are stuck, and looking for help, please come to the New contributors' help page, where experienced Wikipedians can answer any queries you have! Or, you can just type   and your question on this page, and someone will show up shortly to answer. Here are a few good links for newcomers: We hope you enjoy editing here and being a Wikipedian! By the way, you can sign your name on talk and vote pages using four tildes, like this: &#126;&#126;&#126;&#126;. If you have any questions, see the help pages, add a question to the village pump or ask me on my talk page. Again, welcome! --Onorem♠Dil 13:21, 25 February 2009 (UTC)
 * The Five Pillars of Wikipedia
 * How to edit a page
 * Editing tutorial
 * Picture tutorial
 * How to write a great article
 * Naming conventions
 * Manual of Style

Userpage use
Hello, and welcome to Wikipedia! While we appreciate that you enjoy using Wikipedia, please note that Wikipedia is an encyclopedia and not a not a place to socialize or do things that are not directly related to improving the encyclopedia. Off-topic material may be deleted at any time. This message is not meant to discourage you from editing Wikipedia but rather to remind you that the ultimate goal of this website is to build an encyclopedia. --Onorem♠Dil 13:21, 25 February 2009 (UTC)