EASY
7th ICSE
IMPORTANT
Earn 100

Give the formula for chalk, common salt and sugar.

Important Questions on Elements, Compounds and Mixtures

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>CHECKPOINT>Q 4

Identify if these are elements or compounds.

SiO2, H2, H2O, NaCl, O2

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>CHECKPOINT>Q 1
How are the elements in the periodic table classified? Give three examples under each class.
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>CHECKPOINT>Q 2
What is the significance of a symbol?
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>CHECKPOINT>Q 3
Give four characteristics of a compound.
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>CHECKPOINT>Q 4
Give three differences between elements and compounds.
EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>Stop and Check>Q 1

Is this mixture homogeneous or heterogeneous.?

A mixture of different kind of seeds.

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>Stop and Check>Q 1

Is this mixture homogeneous or heterogeneous.?

A mixture of milk and water.

EASY
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 3 - Elements, Compounds and Mixtures>Stop and Check>Q 2
Give three ways in which salt water is different from pure water.