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Ways to Define Concentration

A mixture of ...

Question

A mixture of 80ml of ethylene and acetylene when passed through ammonical silver nitrate, the volume of the mixture is reduced to 20ml. The percentage volume of ethylene and acetylene in the mixture is respectively

A

80%, 20%

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B

20%, 80%

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C

25%, 75%

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D

75%, 25%

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Solution

The correct option is C
25%, 75%

Reduction is the volume is due to acetylene , so volume of acetylene = 60ml so $%$ of acetylene is 75 $%$

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