Question

When $(NH_4)_2Cr_2O_7$ is heated, the gas evolved is

• A. $N_2$
• B. $NO_2$
• C. $O_2$
• D. $N_2O$

Answer 1

Answer: (A)

$N_2$

Answer 2

When ammonium dichromate is heated, it form nitrogen gas, $Cr_2O_3$ and water. $(NH_4)_2Cr_2O_7 \xrightarrow{?}Cr_2O_3+4H_2O+N_2$