V K Sally and R Goel Solutions for Chapter: Is Matter Around Us Pure?, Exercise 3: EXERCISE 2C

Classify the following as physical or chemical properties: Metallic sodium is soft enough to be cut with a knife.

Classify the following as physical or chemical properties: Most metal oxides form alkalis on interacting with water.

Name the process associated when dry ice is kept at room temperature and at one atmospheric pressure.

Name the process associated when a drop of ink placed on the surface of water contained in a glass spreads throughout the water. (Diffusion/ Adsorption)

Name the process associated when a potassium permanganate crystal is in a beaker and water is poured into the beaker with stirring.

Name the process associated when acetone bottle is left open and the bottle becomes empty. (vaporization/ condensation)

Name the process associated when milk is churned to separate cream from it. (filtration/ centrifugation)

Name the process associated with the following:
Settling of sand when a mixture of sand and water is left undisturbed for some time. (sedimentation/ filtration)