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 |
The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is .... ....
1. Excess H2 / Pt
2. NaOH /
3. NaBH4 / Methanol
4. LiAlH4 / Ether
Hofmann bromamide degradation reaction is shown by:
1 | PhNH2 | 2. | PhCONH2 |
3. | PhNO2 | 4. | PhCH2NH2 |
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
Methylamine reacts with HNO2 to form-
1. CH3-O-N=O
2. CH3-O-CH3
3. CH3-OH
4. CH3CHO
The gas evolved when methylamine reacts with nitrous acid is .............
1. NH3
2. N2
3. H2
4. C2H6
In nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species that initiates the reaction is :
1. NO2
2. NO+
3. NO2+
4. NO2-
Reduction of aromatic nitro compounds using Fe and HCl gives
1. aromatic oxime
2. aromatic hydrocarbon
3. Aniline
4. aromatic amide
The most reactive amine towards dilute hydrochloric acid is .........
1.
2.
3.
4.
Acid anhydrides on reaction with primary amines give
1. amide
2. imide
3. secondary amine
4. imine