Which of the following statements about `N_(2)O` is false ?

Options

A. A neutral oxide which does not form hyponitrous acid with water
B. An oily liquid
C. Used as propellant for whipped ice-cream.
D. Used as an anaesthetic.

Explanation

To determine which statement about \( N_2O \) (nitrous oxide) is false, let's analyze each statement provided in the question.

1. **Statement A:** "It is a neutral oxide, which does not form hyponitrous acid with water."
- **Analysis:** \( N_2O \) is indeed a neutral oxide. When it reacts with water, it can form hyponitrous acid (\( H_2N_2O_2 \)), but this reaction requires heat. Therefore, the statement that it does not form hyponitrous acid with water is misleading since it can, but not under normal conditions. However, since it is classified as a neutral oxide, this statement is generally considered true.

2. **Statement B:** "It is an oily liquid."
- **Analysis:** \( N_2O \) is actually a gas at room temperature and pressure, not an oily liquid. This statement is false.

3. **Statement C:** "It is used as a propellant for whipped ice cream."
- **Analysis:** This statement is true. \( N_2O \) is commonly used in whipped cream dispensers as a propellant.

4. **Statement D:** "It is used as an anesthetic."
- **Analysis:** This statement is also true. \( N_2O \) is used in medical settings as an anesthetic for its analgesic properties.

Based on the analysis, the false statement about \( N_2O \) is:

**Final Answer:** Statement B: "It is an oily liquid."