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Chemistry M.C.Q [1M]

Organic Compounds Containing Nitrogen · Bihar Board (BSEB) STD 12 Science (BSEB - English Medium). 31 questions.

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M.C.Q [1M]

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31 questions · timed · auto-graded

MCQ 11 Mark
Which of the following is the most basic?
  • A
    $C _6 H _5 NH _2$
  • B
    $\left( C _6 H _5\right)_2 NH$
  • C
    $C _2 H _5 NH _2$
  • ✓
    $\left( C _2 H _5\right)_2 NH$
Answer
Correct option: D.
$\left( C _2 H _5\right)_2 NH$
D
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MCQ 21 Mark
Methylamine on heating with choloroform and alcoholic KOH gives:
  • A
    $CH _3 OH$
  • B
    $CH _3 CN$
  • C
    $CH _3 CHO$
  • ✓
    $CH _3 NC$
Answer
Correct option: D.
$CH _3 NC$
D
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MCQ 51 Mark
The main product of the following reaction is :
Image
  • A
    $C _6 H _5 OH$
  • ✓
    $C _6 H _5 NH _2$
  • C
    $C _6 H _5 CH _3$
  • D
    $C _6 H _6$
Answer
Correct option: B.
$C _6 H _5 NH _2$
B
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MCQ 61 Mark
Methylamine can be prepared by :
  • A
    Wurtz reaction
  • ✓
    Hofmann bromamide reaction
  • C
    Friedel-Crafts reaction
  • D
    None of these
Answer
Correct option: B.
Hofmann bromamide reaction
B
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MCQ 71 Mark
$CH _3 CN$ on reduction gives :
  • A
    $CH _4$
  • B
    $CH _3 COOH$
  • ✓
    $C _2 H _5 NH _2$
  • D
    $C _2 H _5 COOH$
Answer
Correct option: C.
$C _2 H _5 NH _2$
C
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MCQ 101 Mark
In addition to - COOH group amino acid contains?
  • A
    $- OH$
  • ✓
    $- NH _2$
  • C
    $> CO$
  • D
    $- CHO$
Answer
Correct option: B.
$- NH _2$
B
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MCQ 111 Mark
Which is most basic?
  • A
    $C _6 H _5 NH _2$
  • B
    $\left( C _6 H _5\right)_2 NH$
  • C
    $CH _3 NH _2$
  • ✓
    $\left( CH _3\right)_2 NH$
Answer
Correct option: D.
$\left( CH _3\right)_2 NH$
D
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MCQ 121 Mark
$- CONH _2$ group is known as :
  • ✓
    Amido group
  • B
    Amino group
  • C
    Imino group
  • D
    Carbyl amine
Answer
Correct option: A.
Amido group
A
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MCQ 131 Mark
A compound on hydrolysis gives $1^{\circ}$-amine. The compound is:
  • ✓
    anilide
  • B
    amide
  • C
    cyanide
  • D
    None of these
Answer
Correct option: A.
anilide
A
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Question 141 Mark
An Organic compound reacts with benzene sulfonly chloride and product dissolves in aqueous NaOH . The compound is :
Image
Answer
A
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MCQ 151 Mark
Aniline reacts will acetaldehyde to form :
  • A
    Carbylamine
  • B
    Nitrobenzene
  • C
    Imine
  • ✓
    Schiff base
Answer
Correct option: D.
Schiff base
D
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MCQ 161 Mark
In the diazotisation of aniline with sodium nitrate and hydrochloric acid, the excess of the hydrochloric acid is used initially :
  • A
    Suppress the concentration of free aniline
  • ✓
    Suppress the hydrolysis of phenol
  • C
    Ensure a stoichiometric amount of nitrous acid
  • D
    Neutralise the base liberate
Answer
Correct option: B.
Suppress the hydrolysis of phenol
B
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MCQ 171 Mark
Which is formed by the reaction of RCN with sodium and alcohol?
  • A
    $RCOONH _4$
  • ✓
    $RCONH _2$
  • C
    $RCH _2 NH _2$
  • D
    $\left( RCH _2\right)_3 N$
Answer
Correct option: B.
$RCONH _2$
B
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MCQ 181 Mark
Unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with ?
  • A
    Any aromatic amine
  • ✓
    Any primary amine
  • C
    Any amine
  • D
    Any aliphatic amine
Answer
Correct option: B.
Any primary amine
B
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MCQ 191 Mark
The amino acids are the end product of the digestion of :
  • A
    Lipid
  • B
    Fats
  • ✓
    Protein
  • D
    Enzyme
Answer
Correct option: C.
Protein
C
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MCQ 201 Mark
On reduction secondary amine is give by :
  • A
    Nitrobenzene
  • B
    Ethylamine
  • ✓
    Methyl Cyanide
  • D
    Nitroethane
Answer
Correct option: C.
Methyl Cyanide
C
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MCQ 211 Mark
Methyl amine may be prepared by :
  • A
    Wurt's reaction
  • ✓
    Hoffmann Bromide reaction
  • C
    Friedel-Craft's reaction
  • D
    Kolbe's reaction
Answer
Correct option: B.
Hoffmann Bromide reaction
B
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MCQ 221 Mark
Amides may be converted to amines by the reaction named after :
  • A
    Perkin
  • B
    Claisen
  • ✓
    Hoffmann
  • D
    Clemmensen
Answer
Correct option: C.
Hoffmann
C
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MCQ 241 Mark
When $NH _3$ is reacted with excess alkylhalide we get :
  • ✓
    $1^{\prime}$ amine
  • B
    $2^*$ amine
  • C
    $3^*$ amine
  • D
    a mixture of all these three
Answer
Correct option: A.
$1^{\prime}$ amine
A
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MCQ 251 Mark
Molecular formula of methyl isocyanate is :
  • A
    $CH _3 CNO$
  • ✓
    $CH _3 NCO$
  • C
    (b) $CH _3 NCS$
  • D
    $CH _3 CN$
Answer
Correct option: B.
$CH _3 NCO$
B
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MCQ 271 Mark
Among the following compounds $C _3 H _7 NH _2, NH _3$, $CH _3 NH _2, C _2 H _5 NH _2$ and $C _6 H _5 NH _2$ the least basic compound is :
  • A
    $C _3 H _7 NH _2$
  • B
    $NH _3$
  • C
    $CH _3 NH _2$
  • ✓
    $C _2 H _5, NH _2$
Answer
Correct option: D.
$C _2 H _5, NH _2$
D
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MCQ 281 Mark
The product formed by the reaction between aniline and nitrous acid is :
  • A
    Nitrobenzene
  • B
    Benzenediazonium chloride
  • C
    Chlorobenzene
  • ✓
    Phenol
Answer
Correct option: D.
Phenol
D
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MCQ 291 Mark
The amine which will not liberate nitrogen on reaction with nitrous acid :
  • ✓
    Trimethylamine
  • B
    Ethylamine
  • C
    sec-butylamine
  • D
    Isopopylamine
Answer
Correct option: A.
Trimethylamine
A
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MCQ 301 Mark
The act of $HNO _2$ on which of the following produces nitroso on :
  • A
    Primary amine
  • ✓
    Secondary amine
  • C
    Both (a) & (b)
  • D
    Quarternary ammonium salt
Answer
Correct option: B.
Secondary amine
B
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MCQ 311 Mark
Which of the following amines forms alcohol in treatment with $HNO _2$ ?
  • A
    $CH _3 NH _2$
  • B
    $\left( CH _3\right)_2 NH$
  • C
    $\left( CH _3\right)_3 N$
  • ✓
    $C _2 H _5- NH _2$
Answer
Correct option: D.
$C _2 H _5- NH _2$
D
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