Propyne and propene can be distinguished...

Propyne and propene can be distinguished by ……….

Conc. `H_(2)SO_(4)`

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

Dil. `KMnO_(4)`

`AgNO_(3)` in ammonia

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The correct Answer is:

Terminal alkyne gives white ppt with ammonical sliver nitrate.
`CH_(3)-C-=CH+NH_(3)+AgNO_(3) rarr underset("white ppt.")(CH_(3))-C-=C.Ag+NH_(4)NO_(3)`
while propene does not give any reaction with ammonical `AgNO_(3)` due to absence of acidic hydrogen.

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1-propanol and 2-propanol can be best distinguished by :

oxidation with alkaline `KMnO_(4)` followed by reaction with Fehling's solution

oxidation with acidic dichromate followed by reaction with Fehling's solution

oxidation by heating with copper followed by reaction with Fehling's solution

oxidation with conc. `H_(2)SO_(4)` followed by reaction with Fehling's solution

Propyne and propene can be distinguished by ……….

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1-propanol and 2-propanol can be best distinguished by :

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