Mortar is a mixture of water, sand -
Chile saltpeter is the common name of-
Chemical formula of washing soda is-
Commercial name of sodium bicarbonate is -
Chemical name of baking soda is-
Sodium chloride or Table salt occours in nature as the mineral
Most commonly bleaching agent is -
Sodium carbonate commonly known as-
Chemically 'Philosopher wood' is a-
Why Helium gas used in balloons?
Chemical Name of common salt is-
Helium gas is filled in the balloon instead of Hydrogen because its-
What is asbestos?
pH-scale ranges from -
Conversion of Heat into electric energy is achieved by using -
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