The critical temperature of a substance is

Options

A. The temperature above which a substance can exist only as a gas
B. Boiling point of the substance
C. Temperature above which substance undergoes decomposition
D. All are wrong

Explanation

To solve the question regarding the critical temperature of a substance, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Critical Temperature**:
- The critical temperature (Tc) of a substance is defined as the temperature above which the substance cannot exist in the liquid state, regardless of the pressure applied.

2. **Analyzing the Options**:
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