MEDIUM
10th CBSE
IMPORTANT
Earn 100

(a) Name the salts that are used in black and white photography.
(b) Give reactions when they are exposed to light.
(c) Define the type of chemical reaction taking place.
(d) When is a chemical reaction considered double displacement reaction?

Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
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.
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.