A) Mixing of gases
B) Stretching of rubber
C) Expansion of gas in vacuum
D) Dissociation of \[PC{{l}_{5}}\]
Correct Answer: B
Solution :
In stretching of rubber, \[\frac{6!}{2!2!}\,=180\,\,\,\,\,\,\,\,\,\,\,\times \times \times \times \times \times 5\] is -veYou need to login to perform this action.
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