Heavy water is:

When steam is passed over red hot iron,the substances formed are

Ionic hydrides are usually

On heating a mixture of $NH_4Cl$ and $KNO_2$,we get:

Carbon monoxide is a neutral oxide of carbon,but it acts as a very strong field ligand and associates with metals to form complex compounds. These complex compounds are very useful and used in metallurgical processes. Water gas is a mixture of

The maximum sum of the number of neutrons and protons in an isotope of hydrogen is