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Addition of water to alkynes occurs in a...

Addition of water to alkynes occurs in acidic medium and in the presence of `Hg^(2+)` ions as a catalyst. Which of the following products will be formed on addition of water to but-1-yne under these conditions ?

A

`CH_3 -CH_2-CH_2 - overset ( O) overset(|| )C-H`

B

`CH_3 - CH_2 - overset(O ) overset(|| ) C -CH_3`

C

`CH_3 -CH_2- overset(O ) overset(|| ) C - OH +CO_2`

D

`CH_3 - underset(O ) underset(|| ) C- OH +H -overset(O ) overset(|| ) C -H`

Text Solution

Verified by Experts

The correct Answer is:
B
`CH_3 CH_2 C= CH +H_2 O overset(H^+ ,Hg^(2+))to CH_3 CH_2 underset(OH) overset(|) C =CH_2 hArr CH_3 CH_2 underset(O ) underset(||)C-CH_3`
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Knowledge Check

  • Which of the following are formed on addition reaction of DCl with 3-methyl-1-butene

    A
    `CH_2DCHClCH(CH_3)_2`
    B
    `CH_2DCH_2C Cl(CH_3)_2`
    C
    `CH_3CDClCH(CH_3)_2`
    D
    `ClCH_2CHDCH(CH_3)_2`

  • Which of the following does not form a stable hydrate on addition of H_(2)O ?

    A
    `Ph-overset(O)overset(||)(C)-overset(O)overset(||)(C)-overset(O)overset(||)(C)--Ph`
    B
    C
    D

  • Which of the following ion will form most water soluble hydroxide?

    A
    `K^(+)`
    B
    `Ni^(2+)`
    C
    `Zn^(2+)`
    D
    `Al^(3+)`