Get Answers to all your Questions

header-bg qa

Predict the correct intermediate and product in the following recation.

H_{3}C-C\equiv CH \underset {HgSO_{4}}{\overset {H_{2}O, H_{2}SO_{2}}{\longrightarrow}} \:\:\:\underset {(A)}{Intermediate}\rightarrow \underset {(B)}{product}

  • Option 1)

    A:H_{3}C-\underset {OH}{\underset {|}{C}}=CH:B:H_{3}C-\underset {SO_{4}}{\underset {|}{C}}=CH_{2}

  • Option 2)

    A:H_{3}C-\underset {O}{\underset {||}{C}}=CH_{3}B:H_{3}C-C\equiv CH

  • Option 3)

    A:H_{3}C-\underset {OH}{\underset {|}{C}}= CH_{2}B:H_{3}C-\underset {O}{\underset {||}{C}}=CH_{3}

  • Option 4)

    A:H_{3}C-\underset {SO_{4}}{\underset {|}{C}}=CH_{2}B:H_{3}C-\underset {O}{\underset {|}{C}}-CH_{3}

 

Answers (1)

best_answer

As learnt in,

 

Addition of water on alkyne -

By the addition of water on alkyne in presence of HgSO4 and H2SO4 alkyne give aldehyde or ketone.

- wherein

 

  


Option 1)

A:H_{3}C-\underset {OH}{\underset {|}{C}}=CH:B:H_{3}C-\underset {SO_{4}}{\underset {|}{C}}=CH_{2}

This option is incorrect.

Option 2)

A:H_{3}C-\underset {O}{\underset {||}{C}}=CH_{3}B:H_{3}C-C\equiv CH

This option is incorrect.

Option 3)

A:H_{3}C-\underset {OH}{\underset {|}{C}}= CH_{2}B:H_{3}C-\underset {O}{\underset {||}{C}}=CH_{3}

This option is correct.

Option 4)

A:H_{3}C-\underset {SO_{4}}{\underset {|}{C}}=CH_{2}B:H_{3}C-\underset {O}{\underset {|}{C}}-CH_{3}

This option is incorrect.

Posted by

Plabita

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks