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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn 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,
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe source of nitrogen in Gabriel synthesis of amines is
(1) sodium amide, NaN3
(3) sodium uzide, NaNO2
(3) potassium cyanide, KCN
(4) potassium phthalimide
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAmongst 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 — + RCHO followed by H2/Pt
4. 1o R — Br(2 mol) + potassium phthalimide followed by O+/ heat
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is .... ....
1. Excess H2 / Pt
2. NaOH /
3. NaBH4 / Methanol
4. LiAlH4 / Ether
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHofmann bromamide degradation reaction is shown by
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMethylamine reacts with HNO2 to form-
1. CH3-O-N=O
2. CH3-O-CH3
3. CH3-OH
4. CH3CHO
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe gas evolved when methylamine reacts with nitrous acid is .............
1. NH3
2. N2
3. H2
4. C2H6
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology