EASY
7th CBSE
IMPORTANT
Earn 100

Find out the number of atoms in a molecule of chlorine gas and sulphur.

Important Questions on Elements, Compounds and Chemical Equations

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Explore>Q 1
How will you separate the constituents of oil and water mixture?
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Think Science>Q 1
Do iron loose its magnetic property if a mixture of iron nails and sulphur powder are taken? What if we heat this mixture?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 1

Write the chemical formula of

Aluminium oxide

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 1

Write the chemical formula of Calcium oxide.

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 2
Write the name of the chemical compound represented by the formula CaCl2 
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 1

Write the chemical formula for the following compound 

Ammonium sulphate

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 1

Write the chemical formula for the following compound 

Calcium oxide

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>Assess>Q 1

Write the chemical formula for the following compound 

Aluminium phosphate