Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

Chloroform on reduction with zinc dust and water gives

  • methyl chloride

  • dichloro methane

  • chloro methane

  • methane


42.

In the following reaction,

Ethyl alcohol(in excess) + H+(from H2SO4) 413 K Product

the product is

  • ethene

  • ethyl hydrogen sulphate

  • diethyl ether

  • acetylene


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43.

The compound that forms a yellow oily liquid with nitrous acid is

  • 2-methyl aniline

  • methyl amine

  • Benzyl amine

  • diethyl amine


D.

diethyl amine

Secondary amines (-NH group containing amines), when reacts with nitrous acid (HNO2), a yellow oily nitroso compound is formed.

Among all the given options, only diethyl amine forms a yellow oily liquid with HNO2.

(C2H5)2NHdiethyl amine + HNO2  (C2H5)N-N=ON-nitrosodiethylamine 


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44.

Iso-propyl amine is a 

  • primary amine

  • secondary amine

  • tertiary amine

  • quaternary amine


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45.

In a solution, 0.02 M acetic acid is 4% dissociated. The [OH-] in the solution is

  • 8 × 10-4

  • 2 × 10-14

  • 8 × 1010

  • 1.25 × 10-11


46.

Silver salt of carboxylic acid on reaction with R-X gives

  • alkyl halide

  • ester

  • aldehyde

  • alcohol


47.

Pentan-3-one is not obtained from

  • 2, 2-dichloro pentane

  • 3, 3-dichloro pentane

  • pentan-3-ol

  • pent-2-yne


48.

Negative inductive effect is shown by

  • -CH3

  • -CH2CH3

  • -NH2

  • (CH3)2CH-


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49.

In Dow's process, the starting raw material is

  • phenol

  • chlorobenzene

  • aniline

  • diazobenzene


50.

Cannizaro's reaction is not given by

  • CCl3CHO

  • CH3CHO

  • HCHO

  • C6H5CHO


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