Chemistry
You are provided with two reagent bottles marked A and B. One contains NH4OH solution and the other contains NaOH solution. How will you identify them by a chemical test?
Analytical Chemistry
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Answer
Reagent bottles A and B can identified by using Ca(NO3)2.
When NaOH solution is added to Ca(NO3)2 a white ppt is obtained.
On the other hand, addition of NH4OH solution to Ca(NO3)2 gives no precipitate even when NH4OH solution is added in excess. Thus, Ca(NO3)2 can be used to distinguish between NH4OH and NaOH solution.
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