1.

Can filter paper dipped in silver nitrate solution instead of lead acetate paper be used for testing a sulphide?

Answer»

SOLUTION :Yes, a paper dipped in `AgNO_(3)` when exposed to the VAPOURS of `H_(2)S` TURNS black DUE to the formation of silver sulphide. `2AgNO_(3)+H_(2)StoAg_(2)S+2HNO_(3)`


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