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The freezing point of an aqueous solutio...

The freezing point of an aqueous solution of KCN containing `0.1892" mole"//"kg" H_(2)O` was `-0.704^(@)C`. On adding 0.095 mole of `Hg(CN)_(2)`, the freezing point of solution was `-0.53^(@)C`. Assuming that complex is formed according to the reaction
`Hg(CN)_(2)+xCN^(-) to Hg(CN)_(x+2)^(x-)`
and also `Hg(CN)_(2)` is limiting reagent, find x.

A

Ammoina

B

Nitrous oxide

C

Nitrous acid

D

Hydrazoic acid

Text Solution

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The correct Answer is:
B
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