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 Multiple Choice QuestionsMultiple Choice Questions

271.

Example of geometrical isomerism is

  • 2-butanol

  • 2-butene

  • butanal

  • 2- butyne


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272.

A metal 'M' reacts with N2 to give a compound 'A' (M3N). 'A' on heating at high temperature gives back 'M' and 'A' on reacting with H2O give a gas B. 'B' turns CuSO4 solution blue on passing through it. M and B can be

  • Al and NH3

  • Li and NH3

  • Na and NH3

  • Mg and NH3


B.

Li and NH3

The formula of 'A' is M3N suggests that M is a monovalent metal.

6Li(M) + N2  2Li3NLithium nitride (A)  6Li + N2Li3N + 3H2O  3LiOH+ NH3(B)CuSO4 + 4NH3  [Cu(NH3)4]SO4Blue solution

Hence, M and B are Li and NH3 respectively.


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273.

Electromeric effect is

  • permanent effect

  • temporary effect

  • resonance effect

  • inductive effect


274.

CH3CH2CH(OH)CH3 and CH3(CH2)2CH2OH can be distinguished by

  • Lucas test

  • Iodoform test

  • Victor-Meyer's test

  • All of the above


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275.

The IUPAC name of 

  • bicyclo (5.5.0) nonane

  • biphenyl

  • spiro (3.5) nonane

  • cyclobutyl cyclohexane


276.

The compound which does not exhibit geometrical isomerism, is

  • CH3CH=CHCOOH

  • Br-CH=CH-Br

  • C6H5CH=NOH


277.

Which of the following is the most reactlve towards ring nitration ?

  • benzene

  • toulene

  • m-xylene

  • mesitylene


278.

Racemic compound has

  • equimolar mixture of enantiomers

  • 1 : 1 mixture of enantiomer and diastereomer

  • 1 : 1 mixture of diastereomers

  • 1 : 2 mixture of enantiomers


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279.

In which of the following ways does the hydride ion tend to function ?

  • An electrophile

  • A nucleophile

  • A free radical

  • An acid


280.

The following compound differ in

  • configuration

  • conformation

  • structure

  • chirality


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