TS EAMCET · Chemistry · Aldehydes and Ketones

Propyne was subjected to a reaction with ${HgSO}_{4} /$ dil. $H_{2} {SO}_{4}$ , which resulted in a product $P$ . The product $P$ was heated with $Ba {(OH)}_{2}$ to give the product $Q$ . The molecular formula of the product $Q$ is

A $C_{3} H_{6} O$
B $C_{3} H_{8} OH$
C $C_{6} H_{12} O_{2}$
D $C_{6} H_{10} O$

Verified Solution

Answer & Solution

Correct Answer

(D) $C_{6} H_{10} O$

Step-by-step Solution

Detailed explanation

When propyne is treated with dil H2SO4 in presence of HgSO4, the major product is acetone. A molecule of water is added to C=C double bond to from an enol which tautomerizes to keto form. CH3C≡CH→HgSO4, H2SO4CH3COH=CH2CH3COH=CH2→TautomerisesCH3COCH3…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Propyne was subjected to a reaction with HgSO4/ dil. H2SO4, which resulted in a product P. The product P was heated with BaOH2 to give the product Q. The molecular formula of the product Q is

Step-by-step Solution

Propyne was subjected to a reaction with ${HgSO}_{4} /$ dil. $H_{2} {SO}_{4}$ , which resulted in a product $P$ . The product $P$ was heated with $Ba {(OH)}_{2}$ to give the product $Q$ . The molecular formula of the product $Q$ is