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NEET 2017 · ChemistryPrevious Year Question

Predict the correct intermediate (A) and product (B) in the following reaction: $H X_{3} C - C \equiv CH H2O, H2SO4 HgSO4 (A) (B)$

Answer: (D) A: $H X_{3} C - C (OH) = CH X_{2}$ ; B: $H X_{3} C - CO - CH X_{3}$ .

A.A: $H X_{3} C - C (OSO X_{3} H) = CH X_{2}$ ; B: $H X_{3} C - CO - CH X_{3}$
B.A: $H X_{3} C - C (OH) = CH X_{2}$ ; B: $H X_{3} C - C (OSO X_{3} H) = CH X_{2}$
C.A: $H X_{3} C - CO - CH X_{3}$ ; B: $H X_{3} C - C \equiv CH$
D.A: $H X_{3} C - C (OH) = CH X_{2}$ ; B: $H X_{3} C - CO - CH X_{3}$ ✓

Correct Answer

(D) A: $H X_{3} C - C (OH) = CH X_{2}$ ; B: $H X_{3} C - CO - CH X_{3}$

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