Chemistry · PYQ NEET UG 2016(2)

Which one of the following nitro compounds does NOT react with nitrous acid?

1. A
   \( \text{H}_3\text{C}-\text{C}-\text{CH}-\text{NO}_2 \) (where \( \text{C}=\text{O} \) is attached)
2. B
   \( \text{H}_3\text{C}-\text{CH}_2-\text{CH}_2-\text{NO}_2 \)
3. C
   \( \text{H}_3\text{C}-\text{CH}-\text{CH}_2-\text{NO}_2 \) (with \( \text{CH}_3 \) at C2)
4. D
   \( \text{H}_3\text{C}-\text{C}(\text{CH}_3)_2-\text{NO}_2 \)