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
Name the products formed on strongly heating of ferrous sulphate crystal. What type of chemical reaction occurs in this change.
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
What is an oxidation reaction? Give an example of oxidation reaction. Is an oxidation reaction exothermic or endothermic in nature.
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
Give examples of articles made from iron, which are protected from rusting by:
Enamelling
Plastic coating
EASY
10th CBSE
IMPORTANT
Give examples of articles made from iron, which are protected from rusting by:
Tinning
Electroplating
EASY
10th CBSE
IMPORTANT
Give examples of articles made from iron, which are protected from rusting by:
Tarring
Alloying
EASY
10th CBSE
IMPORTANT
Give examples of articles made from iron, which are protected from rusting by:
Oiling or greasing.