NEET Solved Paper 2017 Question 4

Question: Predict the correct intermediate and product in the following reaction $ H _3C-C\equiv CH\xrightarrow[HgSO _4]{H _2O,H _2SO _4}\underset{\text{(A)}}{\mathop{intermediate}},\xrightarrow{{}}\underset{\text{(B)}}{\mathop{product}}, $

Options:

A) $ A:H _3C-\underset{OH}{\mathop{\underset{|}{\mathop{C}},}},=CH _2 $ $ B:H _3C-\underset{O}{\mathop{\underset{||}{\mathop{C}},}},-CH _3 $

B) $ A:H _3C-\underset{SO _4}{\mathop{\underset{|}{\mathop{C}},}},=CH _2 $ $ B:H _3C-\underset{O}{\mathop{\underset{||}{\mathop{C}},}},=CH _3 $

C) $ A:H _3C-\underset{OH}{\mathop{\underset{|}{\mathop{C}},}},=CH _2 $ $ B:H _3C-\underset{SO _4}{\mathop{\underset{|}{\mathop{C}},}},=CH _2 $

D) $ A:H _3C-\underset{O}{\mathop{\underset{||}{\mathop{C}},}},-CH _3 $ $ B:H _3C-C\equiv CH $

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ A:H _3C-\underset{OH}{\mathop{\underset{|}{\mathop{C}},}},=CH _2 $ $ B:H _3C-\underset{O}{\mathop{\underset{||}{\mathop{C}},}},-CH _3 $