Metal reacts with hydrogen to form

Mutual exchange of elements or radicals by two substances is known as

When Zinc is added to dilute hydrochloric acid, the gas liberated is

Decomposition of calcium carbonate liberates

On decomposition of mercuric oxide, the gas liberated is 

Magnesium ribbon burns with dazzling light and gives white ash called

On burning Sulphur with oxygen, Sulphur dioxide is formed, It is an example for

The coolant used in nuclear reactor is 

When a single substance split into 2 or more substances, the reaction is called

Nitrogen and hydrogen combines to form