HARD
9th CBSE
IMPORTANT
Earn 100

Write two main differences between an element and a compound. 

Important Questions on Is Matter Around Us Pure? (Elements, Compounds and Mixtures)

EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 4
'Water is a compound and not an element'. Give evidence to support this statement.
HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 5

Classify the following as elements and compounds

Potassium, iron sulphide, graphite, common salt, oxygen, iron, washing soda.

MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 1
Illustrate the terms: solution, solvent and solute by taking an example. 
HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 2
Write one example each of solid, liquid and gaseous substances which dissolve in water.
HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 3
Name the solvent and solute in the tincture of iodine. 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 4
Give an example of a solution in which gases are dissolved in water.
MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 5
Give an example of solid solution.
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 2 - Is Matter Around Us Pure? (Elements, Compounds and Mixtures)>Problems for Proficiency>Q 6
 Define saturated solution.