MCQ
Find out the incorrect pair :
- ATetragens $-n s^2 n p^2$
- BIcosagens - ns ${ }^2 np ^1$
- CChalcogens $-n s^2 n p^4$
- ✓Halogens $-n s^2 n p^6$
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| Column I | Column II |
| A. Aldo pentose | 1. Ribulose |
| B. Keto pentose | 2. Fructose |
| C. Aldo hexose | 3. Ribose |
| D. Keto hexose | 4. Glucose |
| Column - I | Column - II |
| A. $CH _3 CN \underset{ C _2 H _5 OH }{\stackrel{ Na ( Hg )}{\longrightarrow}}$ ? | 1. $CH _3 NH CH _3$ |
| B. $CH _3 NC \underset{ C _2 H _5 OH }{\stackrel{ Na ( Hg )}{\longrightarrow}}$ ? | 2. $CH _3 NH _2$ |
| C. $CH _3 CONH _2 \stackrel{ Br _2 / KOH }{\longrightarrow}$ ? | 3. $C _6 H _5 NH _2$ |
| D. $C _6 H _5 NO _2 \stackrel{ Sn / HCl }{\longrightarrow}$ ? | 4. $CH _3 CH _2 NH _2$ |