Dicky, Micky and Vicky had three liquids, A, B and C respectively. They mixed these liquids and observed that they form a homogeneous mixture. They wer unable to separate the liquids and asked their teacher to separate these for them. The teacher subjected the given mixture to fractional distillation. Liquid B was obtained in the receiver flask. On further distillation, A was left behind in the distillation flask. On the basis of the results, comment on the critical temperatures of A, B and C in their respective gaseous states.

Explanation

To solve the problem, we need to analyze the information given about the three liquids A, B, and C, and how they behave during fractional distillation.

### Step-by-Step Solution:

1. **Understanding Critical Temperature**:
- The critical temperature of a substance is the temperature above which its vapor cannot be liquefied, regardless of the pressure applied. This means that at or above this temperature, the substance remains in a gaseous state.

2. **Observation from Fractional Distillation**:
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