ICSE Class 10 Chemistry 2023 Solved Paper

Study the following observations and name the anions present in each of the reactions.

Question : 60

Total: 88

When few drops of barium nitrate solution is added to the salt solution ' Q ', a white precipitate is formed which is insoluble in HCl .

Solution:

' Q ' is sodium sulphate, when barium nitrate solution is added to it, a white precipitate of barium sulphate is formed, which is insoluble in HCl .
Na2SO4+Ba(NO3)2→

BaSO4

‌ White ppt ‌

↓ +2NaNO3
Anion is SO42− (Sulphate)

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