(NH4)2Cr207\rightarrowN2+Cr203+4H2O
Q1 green powder blown in air during fireworks from ammonium dichromate is ?
Q2 why ferric chloride is used for etching copper and silver metals ?
Q3 heating ferric sulfate gives ??
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Q1 green powder blown in air during fireworks from ammonium dichromate is ?
Q2 why ferric chloride is used for etching copper and silver metals ?
Q3 heating ferric sulfate gives ??