The alkali metal that has highest reactivity with water is:

Plaster of Paris is:

Which alkali metal gives crimson flame colour?

Sodium is stored in:

Dead burnt plaster is:

Washing soda is:

The alkaline earth metal that does not give flame colour is:

Quick lime is:

Which compound of sodium is used as an antacid?

Cement is a mixture of:

KO₂ (potassium superoxide) is used in:

Gypsum formula is:

The alkali metal with highest melting point is:

BeCl₂ in vapour state is:

Solvay process produces:

MgO is used as:

The anomalous behaviour of lithium is due to:

Caustic soda is manufactured by:

Beryllium resembles aluminium due to:

Hardness of water is caused by: