Laughing gas is prepared by heating

Laughing gas is obtained by heating of………….

Laughing gas is obtained on heating a mixture of NH_4Cl and ......... but nitrogen gas is obtained when a mixture of NH_4Cl and .............. is heated.

Dihydrogen gas may be prepared by heating caustic soda on

Dihydrogen gas may be prepared by heating caustic soda on

Dihydrogen gas may be prepared by heating caustic soda on

Explain : Anhydrous magnesium chloride is prepared by heating MgCl_2 . 6H_2O in a current of dry HCl gas.

The laughing gas is

The laughing gas is