MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the colour of ferrous sulphate crystals? How does this colour change on heating?

Important Questions on Chemical Reactions and Equations
MEDIUM
10th CBSE
IMPORTANT

HARD
10th CBSE
IMPORTANT
(i) What is observed when a solution of potassium iodide is added to a solution of lead nitrate in a test tube?
(ii) What type of reaction is this?
(iii) Write a balanced chemical equation to represent the above reaction.

MEDIUM
10th CBSE
IMPORTANT

EASY
10th CBSE
IMPORTANT
Give examples of articles made from iron, which are protected from rusting by:
Red lead paint
Paint

EASY
10th CBSE
IMPORTANT
Enamelling
Plastic coating

EASY
10th CBSE
IMPORTANT
Tinning
Electroplating

EASY
10th CBSE
IMPORTANT
Tarring
Alloying

EASY
10th CBSE
IMPORTANT
Oiling or greasing.
