EASY
7th CBSE
IMPORTANT
Earn 100

Match the following:

1 Iron a Cu
2 Copper b MgOH2
3 Sodium Oxide c Ag
4 Magnesium hydroxide d Fe
5 Silver e NaO

Important Questions on Matter and Chemical Formulae

EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Name the subatomic particles present in an atom.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Is gold an element or a compound?
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Write the valencies of copper, nitrogen and sulphur.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Name the element represented by the symbol Cl.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Name the compound having the chemical formula AgNO3
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Name the elements present in MgO.
EASY
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E

Correct the following chemical formulae: AlNO3

A: Al3NO3    B: AlNO33    C: Al2NO33 (Enter your correct answer as A, B or C)

MEDIUM
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 5 - Matter and Chemical Formulae>ASSESSMENT ZONE>Q E
Correct the following chemical formulae:
ZnCl