Chemistry - Organic Compounds Containing Nitrogen

Question - 1

Acetonoxime on catalytic hydrogenation gives

  • A 1-propanamine
  • B isopropylamine
  • C ethanamine
  • D ethylmethyl amine 

Question - 2

The end product in the following reaction is \({ C }_{ 6 }{ H }_{ 5 }{ N }H_{ 2 }\xrightarrow { HN{ O }_{ 2 } } A\xrightarrow { PCl_{ 5 } } B\xrightarrow { N{ H }_{ 3 } } C\)

  • A ethyl cyanide 
  • B ethyl amine
  • C methyl amine 
  • D acetamide

Question - 3

\(A\xrightarrow { NH_{ 2 }OH } B\xrightarrow { Reduction } C\xrightarrow { NOCl } { C }{ H }_{ 3 }{ C }H_{ 2 }Cl\)In the above sequence ,A and C are 

I.methanal,methyl amine

II.acetone ,ethanamine

III.ethanal,dimethyl amine 

IV.acetaldehyde,ethylamine 

  • A Only II
  • B Only IV
  • C Only I
  • D Only III

Question - 4

In the reaction of (s) -2-phenyl propanamide with NaOBr/\(H_2O\) to give 1-phenylethylamine,

  • A there is retention of configuration 
  • B there is inversion of configuration
  • C a mixture of two products is obtained
  • D there is no reaction 

Question - 5

Which of the following reactions is given by only primary amines ?

  • A Reaction with HONO
  • B Reation with \(CHCl_3\) and alcoholic KOH
  • C Reaction with acetyl chloride
  • D Reaction with Grignard's reagent

Question - 6

Toulence is nitrated and the resulting product is reduced with tin and then heated with cuprous bromide .The reaction mixture so obtained contains

  • A mixture of o- and p-bromotoluenes
  • B mixture of o- and p-dibromobenzenes
  • C mixture of o- and p-bromoanilines
  • D mixture of o- and m-bromotoluenes

Question - 7

Hofmann bromide degradation reaction is shown by 

  • A \(ArNH_2\)
  • B \(ArCONH_2\)
  • C \(ArNO_2\)
  • D \(ArCH_2NH_2\)

Question - 8

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

  • A \(H_2\)(excess)/Pt
  • B \(LiAlH_4\) in ether
  • C Fe and HCl
  • D Sn and HCl

Question - 9

In order to prepare a 1o amine from an alkyl halide with simultaneous addtion of one CH2 group in the carbon chain,the reagent used as source of the nitrogen is

  • A sodium amide,NaNH2
  • B sodium azide,NaN3
  • C potasium cyanide,KCN
  • D potassium phthalimide,C6H6(CO)2N-K+

Question - 10

Melting points are normally highest for

  • A tertairy amides
  • B secondary amides
  • C primary amides
  • D amines
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