MEDIUM
10th CBSE
IMPORTANT
Earn 100

Describe an activity to show the decomposition reaction in which light is used to decompose a reactant. Write the chemical equation of the reaction and state one of its uses.

Important Questions on Chemical Reactions and Equations

HARD
10th CBSE
IMPORTANT
(a) Account for the following:
(i) White silver chloride turns grey in sunlight.
(ii) Brown coloured copper powder on heating in the air turns into black coloured substance.
EASY
10th CBSE
IMPORTANT
Define the following:
Displacement reaction.
Give an example with a balanced chemical equation.
EASY
10th CBSE
IMPORTANT
Define the following:
Reduction reaction.
Give an example with a balanced chemical equation.
EASY
10th CBSE
IMPORTANT
Define the following:
Combination reaction.
Give an example with a balanced chemical equation.