Monazite is an ore of

Carbon, diamond and graphite are together called:

Potassium nitrate is used in

Permanent hardness of water may be removed by the addition of:

Soda water contains

The most important ore of aluminum is

Most soluble in water is

Which of the following was to be discovered first in the chromospheres of the sun?

Which of the following is in liquid form at room temperature?

Sodium metal is kept under