EASY
9th CBSE
IMPORTANT
Earn 100

Classify the following as physical or chemical properties: The composition of a sample of steel is: 98% iron, 1.5% carbon and 0.5% other elements.

33.33% studentsanswered this correctly

Important Questions on Is Matter Around Us Pure?

EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 2

Identify the following as physical property or chemical property.

Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.

EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 2
Classify the following as physical or chemical properties: Metallic sodium is soft enough to be cut with a knife.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 2

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

HARD
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 1
Give three characteristics of a chemical change.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 2
Name the process associated when a potassium permanganate crystal is in a beaker and water is poured into the beaker with stirring.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 2
Name the process associated when acetone bottle is left open and the bottle becomes empty. (vaporization/ condensation)
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 1
Classify each of the following, as a physical or a chemical change. Give reasons.
Drying of a shirt in the sun.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2C>Q 1
Classify each of the following, as a physical or a chemical change. Give reasons.
Rising of hot air over a radiator.