Hydrolysis of $PCl_5$ gives

Illustrate how copper metal can give different products on reaction with $HNO_3$.

When bauxite powder is mixed with coke and heated with nitrogen at $2075 \ K$,carbon monoxide and $x$ are formed. Which gas is produced when $x$ reacts with water?

Which two gases react to form dense white fumes?

Pure $HNO_3$ is a colorless liquid,but it turns light brown in the presence of light. This is due to its decomposition into which of the following substances in small amounts?

$(NH_4)_2Cr_2O_7$ on heating gives: