MCQ
Rank in the order of increasing acidity


- A$III < I < II$
- B$I < III < II$
- C$III < II < I$
- ✓$II < I < III$


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$1.\,\,CH_3-C \equiv C -CH_3$
$2.\,\,CH_3 - CH_2 - CH_2 - CH_3$
$3. \,\,CH_3 - CH_2C \equiv CH$
$4.\,\,CH_3 - CH = CH_2$