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3CH3COCH3 → HCl / -3H2O → (CH3)2C = CH - CO - CH = C(CH3)2 This polymer (B) is obtained when acetone is saturated with hydrogen chloride gas, B can be

1. phorone
2. formose
3. diacetone alcohol
4. mesityl oxide

Correct answer: phorone

Solution

The reaction involves the condensation of acetone in the presence of HCl, leading to the formation of phorone, a compound with conjugated double bonds.

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