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Which of the following reagents would yo...

Which of the following reagents would you prefer to find out whether the hydrocarbon `C_(3)H_(4)` contains one-triple bond or two double bonds?

A

Fehling solution

B

Ammoniacal `AgNO_(3)` or `CuCl` solution

C

Baeyer's reagent

D

`Br_(2)//C Cl_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
If the hydrocarbon `C_(3)H_(4)` contains a triple bond it must be `CH_(3)-=CH`. Since, being a terminal alkyne, it will react with ammoniacal `AgNO_(3)`.
`AgNO_(3)` solution, to given a white ppt of silver propynide or with ammoniacal CuCl solution to give a red of copper propynide.
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