| Reaction | Product | |
| (i) | \[RX+AgCN\] | \[RNC\] |
| (ii) | \[RX+KCN\] | \[RCN\] |
| (iii) | \[RX+KN{{O}_{2}}\] |  |
| (iv) | \[RX+AgN{{O}_{2}}\] | \[R-O-N=O\] |
A) I alone
B) I and II
C) III and IV
D) I, II, III and IV
Correct Answer: B
Solution :
Alkali metal nitrites \[(KN{{O}_{2}})\] being ionic, gives alkyl nitrites when reacts with RX. \[RX+KNO\xrightarrow{{}}\underset{\text{alkyl}\,\text{nitrite}}{\mathop{RON=O}}\,+NaX\] However, silver nitrite being covalent, when reacts with RX gives nitroalkane. \[RX+AgN{{O}_{2}}\xrightarrow{{}}\underset{\text{nitroalkane}}{\mathop{RN{{O}_{2}}}}\,+AgX\]
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