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Q. No.Which reagent transforms nitromethane into methylamine?
1. Zn/HCl
2. Zn/NaOH
3. Zn/C2H5OH
4. Ni/H2
Subtopic: Amines - Preparation & Properties | Mechanism |
Level 3: 35%-60%
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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 |
64%
Level 2: 60%+
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Select the correct option based on statements below:
| Assertion (A): | Only a small amount of HCI is required in the reduction of nitro compounds with iron scrap and HCI in the presence of steam. |
| Reason (R): | FeCl2 formed gets hydrolyzed to release HCI during the reaction. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Amines - Preparation & Properties |
86%
Level 1: 80%+
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The reagent employed in converting nitromethane to methylamine is:
1. \(\mathrm{SOCl}_2 \)
2. \(\mathrm{NaNH}_2 \)
3. \(\mathrm{PCl}_5 \)
4. \(\mathrm{Sn} / \mathrm{HCl}\)
1. \(\mathrm{SOCl}_2 \)
2. \(\mathrm{NaNH}_2 \)
3. \(\mathrm{PCl}_5 \)
4. \(\mathrm{Sn} / \mathrm{HCl}\)
Subtopic: Urea & Nitro Compound |
90%
Level 1: 80%+
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Subtopic: Amines - Preparation & Properties |
78%
Level 2: 60%+
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Which of the following compounds, when reduced with lithium aluminium hydride, produces a secondary amine?
1. Nitroethane
2. Methylisocyanide
3. Acetamide
4. Methyl cyanide
Subtopic: Amines - Preparation & Properties |
79%
Level 2: 60%+
AIPMT - 2007
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The product B in the below mentioned reaction is:
\(Acetamide \overset{P_2O_5}{\longrightarrow}A\ \overset{4H}{\longrightarrow}\ B\)
1. CH3NH2
2. C2H5NH2
3. CH3CN
4. CH3COONH4
Subtopic: Amines - Preparation & Properties |
67%
Level 2: 60%+
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The most effective reagent among the following to convert 2-phenylpropanamide into 2-phenylpropanamine is:
| 1. | Excess H2 |
| 2. | Br2 in aqueous NaOH |
| 3. | Iodine in the presence of phosphorus |
| 4. | LiAlH4 in ether |
Subtopic: Amines - Preparation & Properties |
60%
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Among the given reactions, which one does not result in the formation of a primary amine as the product?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Amines - Preparation & Properties |
75%
Level 2: 60%+
NEET - 2023
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Mark the reaction that does not yield aniline from the given options:
| 1. | Hydrolysis of phenyl isocyanide with an acidic solution |
| 2. | Degradation of benzamide with bromine in alkaline solution |
| 3. | Reduction of nitrobenzene with H2/Pd in ethanol |
| 4. | Treatment of potassium salt of phthalimide with chlorobenzene followed by hydrolysis in an aqueous NaOH solution |
Subtopic: Amines - Preparation & Properties |
65%
Level 2: 60%+
NEET - 2015
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