ACIDS, BASE AND SALTS

Name the gas liberated when metals react with acids?

Which gas is liberated when Sodium hydrogen carbonate reacts with an acid?

• Hydrogen

• Sulphur dioxide

• Carbon dioxide

• Nitrogen dioxide

What is plaster of Paris?

What is used to disinfect water?

• Bleaching Powder

• Baking Soda

• Sodium Hydroxide

• Sodium carbonate

Which compound is used to make soda acid fire extinguisher?

• Sodium Hydroxide

• Bleaching Powder

• Sodium Carbonate

• Sodium Hydrogen Carbonate

Which compound is prepared using Chlor Alkali process?

• Sodium hydroxide

• Plaster of Paris

• Bleaching Powder

• Sodium carbonate

When acid and base reacts ........... and .............. are formed?

• Salt, Water

• Salt , Hydrogen

• Salt, Carbon dioxide

• Hydrogen, carbon dioxide

Metallic oxides are basic in nature.

• True

• False

Baking Powder is.............

• Baking Soda + Mild Base

• Only Baking Soda

• Baking Soda + Sodium Carbonate

• Baking Soda + Mild acid

Confirmatory test for Carbon dioxide gas is:

• It smells of burning Sulphur

• Carbon dioxide turn red litmus blue

• Carbon dioxide turns lime water milky

• Carbon dioxide burns with a POP sound