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  • A bottle contains an old sample of and mixed in unknown ratio. What test can be done to know the

A bottle contains an old sample of NaCl and AgNO_{3} mixed in unknown ratio. What test can be done to know the amount of AgNO_{3}?

Option: 1

Dissolving in hot water.


Option: 2

Reaction with KMnO_{4}


Option: 3

Reaction with NH_{3}


Option: 4

Reaction with \mathrm{K}_2 \mathrm{CrO}_4 .


Answers (1)

best_answer

2 \mathrm{AgNO}_{3(\mathrm{aq})}+\mathrm{K}_2 \mathrm{CrO}_{4(\mathrm{aq})} \rightarrow 2 \mathrm{KNO}_{3(\mathrm{aq})}+\mathrm{Ag}_2 \mathrm{CrO}_{4(\mathrm{~s})}

Silver chromate is a dark red solid that precipitates easily in an aqueous solution and can be weighed out.

 

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seema garhwal

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