MCQ
The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is _____________.
- Aexcess H2/ Pt.
- BNaOH/ Br2.
- CNaBH4/ methanol.
- DLiAlH4/ ether.
Explanation:
$\text{CH}_3-\text{CH}-\text{CONH}_2\xrightarrow[\text{(Hofmann's bromamide reaction)}]{\text{Br}_2/\text{N}_\text{a}\text{OH}}\text{CH}_3-\text{CH}-\text{NH}_2\\\ \ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \text{C}_6\text{H}_5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{C}_6\text{H}_5\\2-\text{Phenylpropanamide}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1-\text{Phenyletanamine}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column I | Column II |
| (a) Non ideal solution with positive deviation | (i) $H _2 O (57 \%)+ HI (43 \%)$ |
| (b) Maximum boiling azeotrope | (ii) $CHCl _3+\left( CH _3\right)_2 CO$ |
| (c) Non ideal solution with negative deviation | (iii) $C _2 H _5 OH (95.4 \%)+ H _2 O (4.6 \%)$ |
| (d) Minimum boiling azeotrope | (iv) $CCl _4+ C _6 H _5 CH _3$ |