Question

chemical test to distinguish between ethane and ethyl chloride

Answer 1

Add small amount of KOH and acidify with dil. Nitric acid and then few drops of silver nitrate solution.

A white ppt. Soluble in NH4OH indicates chloroethane while a light yellow ppt. partially soluble in NH4OH indicates bromoethane.

C2H5Cl + KOH → C2H5OH + KCl

KCl + AgNO3 → AgCl(White ppt.)

C2H5Br + KOH → C2H5OH + K Br

K Br + AgNO3 → Ag Br (Pale yellow ppt.)

Test to distinguish between chloroethane and vinyl chloride:

Ethyl chloride will react with AgNO3 to give a white ppt. of AgCl, whereas vinyl chloride will not respond to this test.

Answer 2

here is your answer

when both treated with AgNO3 , the ethylchloride give white ppt of AgCl

and

ethane give yellow ppt of AgBr

hope it help

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