MCQ
Which of the following will be optically inactive


- A$A$ only
- B$A$ & $D$
- ✓$A, C$ & $D$
- DAll of these

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| Condition | Temperature |
| $(1)$ Spontaneous | $(p)$ $273\,K$ |
| $(2)$ At equilibrium | $(q)$ $260\, K$ |
| $(3)$ Non-spontaneous | $(r)$ $280\, K$ |