ch. 1 matter pg 4 to 6

The process of conversion of solid to liquid at a fixed temperature is

• CONDENSATION

• MELTING

• EVAPORATION

• NONE

In a chemical reaction, the total mass of the reactants is __________to the total mass of the products.

• INEQUAL

• SIMILAR

• EQUAL

• NOTA

What do you observe when BaCl2 solution is mixed with Sodium sulphate solution?

• White PPT is formed

• Black PPT. is formed

• Yellow PPT. is formed

• NONE

The change of state of matter from solid state to directly gaseous state is known as -

• Melting

• Boiling

• Condensation

• Sublimation

The change of state from liquid to gas at any temperature below its boiling point is known as ..........

• FUSION

• BOILING

• CONDENSATION

• EVAPORATION