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SAI INTERNATIONAL SCHOOL
CLASS-VII
SUBJECT- CHEMISTRY
TOPIC-PHYSICAL AND CHEMICAL CHANGES
SUB TOPIC- DISPLACEMENT REACTION
Objective/MCQs
Choose the correct option/options
Q. Questions Skill M1arks
No.
1. XY X+Y U 1
Mention the type of reaction.
a) Distillation reaction
b) Combination reaction
c) Crystallisation
d) Decomposition reaction
2. Decomposition reaction is a…………… reaction. U 1
a) Physical
b) Chemical
c) Both a) and b)
d) Reversible
3. Name the gas evolved when carbon is burnt with oxygen. A
a) Oxygen
b) Hydrogen
c) Carbon dioxide
d) Nitrogen
4. Carbon is added to sulphur to produce carbon di sulphide. U 1
What type of reaction is it?
a) Addition reaction
b) Decomposition reaction
c) Displacement reaction
d) Precipitation reaction
5. Copper is added to iron sulphate solution. The following A 1
observation will be seen,
a) Colour of Iron sulphate solution will be changed.
b) Iron will be deposited below the solution.
c) Copper sulphate will produced.
d) No chemical reaction takes place.
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