Amines Test

Amines

This is amines Test-04 for CBSE class 12 Chemistry.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The reaction of Benzene diazonium chloride with aniline yields
  • A
    o – aminoazobenzene
  • B
    p – aminoazobenzene
    Correct
  • C
    m – aminoazobenzene,
  • D
    mixture of ortho and para – aminoazobenzene.
2
Anisole reacts with a mixture of concentrated sulphuric and nitric acids to yield a mixture of ortho and para nitroanisole
Question 2 figure 1
  • A
    major product is para nitroanisole
    Correct
  • B
    None of these.
  • C
    ortho and para in equal amounts.
  • D
    minor product is ortho nitroanisole
3
In a coupling reaction, the azo products obtained, involve an
  • A
    –N=N– bond and electrophilic substitution reaction.
    Correct
  • B
    electrophilic substitution reaction.
  • C
    –N=N– bond
  • D
    nuclepholic substitution
4
When one of the following reacts with NaOH, the product is sodium benzoate
  • A
    benzaldehyde
  • B
    benzene hydroxide
  • C
    benzoic acid
    Correct
  • D
    benzene
5
Esterification is the reaction of one of the below compounds with alcohol
  • A
    carboxylic acids
    Correct
  • B
    Amine
  • C
    Amide
  • D
    Ester
6
The molecular formula of ethyl acetate is
  • A
    $C_5 H_8 O_2$
  • B
    $C_5 H_10 O_2$
  • C
    $C_4 H_8 O$
  • D
    $C_4 H_8 O_2$
    Correct
7
When methylamine reacts with HCl the product is
  • A
    methyl ammonium chloride
    Correct
  • B
    methane and methyl chloride
  • C
    methonoate chloride
  • D
    methylammonia
8
Direct nitration of aniline yields significant amount of meta derivative. To obtain more p – nitro derivative, one or more of the below can be done
  • A
    controlling the nitration reaction
  • B
    acetylation reaction
  • C
    reacting with acetic anhydride
  • D
    all of these
    Correct
9
The below reaction yieldsYields the following The 1,2,3 that are involved in completing the above synthesis are
Question 9 figure 1
Question 9 figure 2
  • A
    $HNO_3$, $H_2SO_4$, 453K
  • B
    None of these
  • C
    $HNO_3$, $H_2SO_4$, 473K
  • D
    $HNO_3$, $H_2SO_4$, 288K
    Correct
10
Aniline does not undergo Friedel – Crafts reaction
  • A
    nitrogen of aniline acquires positive charge
  • B
    Anilium ion deactivates any further reaction.
  • C
    aluminium chloride, the catalyst reacts with NH2 group
  • D
    all of these
    Correct
11
The base hydrolysis of an ester is called
  • A
    hydrolysis
  • B
    saponification
    Correct
  • C
    esterification
  • D
    neutralization
12
The nitrogen's lone pair in pyrrolidine is best described as occupying what type of orbital?
  • A
    s
  • B
    $sp^3$
    Correct
  • C
    $sp^2$
  • D
    sp
13
Which one of the following reagents are most suitable in completing the following synthesis?
Question 13 figure 1
  • A
    Pd
  • B
    $LiAlH_4$
    Correct
  • C
    Ni
  • D
    Sn
14
Gabriel synthesis is used for the preparation of :
  • A
    quaternary salt
  • B
    primary amines
    Correct
  • C
    secondary amine
  • D
    tertiary amine
15
Which one of the following cannot be obtained by Gabriel synthesis?
  • A
    Aromatic tertiary amine
  • B
    None of these
  • C
    Aromatic secondary amines
  • D
    Aromatic primary amines
    Correct