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Question

An organic compound 'X' on treatment with acidified $$K_2Cr_2O_7$$ gives a compound 'Y' which reacts with $$I_2$$ and $$Na_2CO_3$$ to form tri-iodomethane. The compound 'X' is?

A
$$CH_3OH$$
B
$$CH_3CHO$$
C
$$CH_3COCH_3$$
D
$$CH_3CHOHCH_3$$
Solution
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Correct option is D. $$CH_3CHOHCH_3$$
The compound Y should be a ketone as it is responding to iodoform test. Since it is formed by treating X with potassium dichromate(acidic) X should be a secondary alcohol. X is $$CH_3CH(OH)CH_3$$

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