Question

What happen when ammonium dichromate is heated with chemical equation

Answer 1

Answer:(NH4) 2Cr2O7-(heated) - - - Cr2O3+N2+4H2O

Explanation:Orange red colour crystalline solid on strong heating swells up & decomposes violently with flasses of light. Greenish residue also gives of steamy dunes which condences cooler part of the test tube to form tiny droplets of water.

Answer 2

The balanced reaction is-

$(NH_4)_2Cr_2O_7\rightarrow Cr_2O_3+N_2+4H_2O$.

• One mole of orange coloured solid ammonium dichromate on heating decomposes to one mole of green coloured solid chromic oxide along with one mole of colourless nitrogen gas and four moles of water vapour.
• The balanced chemical equation of the reaction is as follows-
• $(NH_4)_2Cr_2O_7\rightarrow Cr_2O_3+N_2+4H_2O$.
• Thus ammonium dichromate on heating decomposes to chromic oxide, nitrogen gas and water vapour.