1.

What is chemical volcano ?

Answer»

Solution :On HEATING crystals or red coloured ammoninum dichromate a violent action accompanied by flashes of light and evoluction of nitrogen takes place, LEAVING behind green coloured chromimum sesquioxide.
`(NH_4)_2Cr_2O_7 OVERSET(DELTA) rarr N_2 + 4H_2O +Cr_2O_3`


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