The reagent among the following that does not reduce an aryl nitro compound to an amine is:

1. H2(excess) / Pt

2. LiAlH4 in ether

3. Fe and HCI

4. Sn and HCI

Subtopic:  Urea & Nitro Compound |
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In order to prepare a 1o amine from an alkyl halide with the simultaneous addition of one CH2 group in the carbon chain, the reagent used as a source of nitrogen is-

1.  Sodium amide, NaNH2

2.  Sodium azide, NaN3

3.  Potassium cyanide, KCN

4.  Potassium phthalimide, C6H4(CO)2 NK+

Subtopic:  Amines - Preparation & Properties |
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The source of nitrogen in Gabriel synthesis of amines is

(1) sodium amide, NaN3

(3) sodium uzide, NaNO2

(3) potassium cyanide, KCN

(4) potassium phthalimide C6H4(CO)2 NK+

Subtopic:  Amines - Preparation & Properties |
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Amongst the given set of reactants, the most appropriate for preparing 2o amine is 

1.  2o  R - Br + NH3
2.  2oR — Br + NaCN followed by H2/Pt
3.  1o R —NH2 + RCHO followed by H2/Pt
4.  1o R — Br(2 mol) + potassium phthalimide followed by H3O+/ heat

Subtopic:  Amines - Preparation & Properties |
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Which reagent is most effective in converting 2-phenylpropanamide into 2-phenylpropanamine?

1. Excess H2

2. Br2 in aqueous NaOH

3. Iodine in the presence of phosphorus

4. LiAlH4 in ether

Subtopic:  Amines - Preparation & Properties |
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The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is .... ....

1.  Excess H2 / Pt

2.  NaOH / Br2

3. NaBH4 / Methanol

4.  LiAlH4 / Ether

Subtopic:  Amines - Preparation & Properties |
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Hofmann bromamide degradation reaction is shown by

1. PhNH22. PhCONH23. PhNO24. PhCH2NH2

Subtopic:  Amines - Preparation & Properties |
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The correct increasing order of basic strength for the following compounds is:

   (I)       (II)       (III)

1. II < III < I

2. III < I < II

3. III < II < I

4. II < I < III

Subtopic:  Amines - Preparation & Properties |
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Methylamine reacts with HNO2 to form-
1. CH3-O-N=O
2. CH3-O-CH3
3. CH3-OH
4. CH3CHO

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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The gas evolved when methylamine reacts with nitrous acid is .............

1. NH3
2. N2
3. H2
4. C2H6

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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