5th Chapter

7th General Science English Medium Chapter 5 Test

Here you can prepare 7th General Science English Medium Test. Click the button for 7th General Science English Medium Chapter 5 100% free full practice test.

7th Class General Science MCQ Test With Answer for Science chapter 5

7th Class General Science MCQ Test With Answer for Science chapter 5

Sr. # Questions Answers Choice
1 Select all that happen during a chemicla change.
  • A. A temporary chagne occurs.
  • B. Composition of the substanes is changed.
  • C. Propertis of the sbstances are changed.
  • D. New substances with different properties are formed.
2 A piece of iron is kept in open air for 5 days. A film of corrosion formed over it is.
  • A. Iron oxide
  • B. Iron sulphide
  • C. Iron Chloride
  • D. Iron Hydride
3 Chemical reaction of oxygen with other substances is called.
  • A. Oxidation
  • B. Reduction
  • C. Rusting
  • D. None of these
4 What are teh products when electric current is passed through water.
  • A. Only steam
  • B. Hydrogen and steam
  • C. Hydrogen and oxygen
  • D. Oxygen and steam
5 Formation of steam from water is example of.
  • A. Chemical change
  • B. Physical Change
  • C. Both of these
  • D. None of these
6 Compustion is a.
  • A. Physical Change
  • B. Chemical change
  • C. Thermal change
  • D. None of these
7 Sajeet the one that is different from the otehrs.
  • A. Solubility
  • B. Conductance
  • C. Oxidation
  • D. Coiling of a substance
8 On heating sugar changes into
  • A. Carbon
  • B. Water
  • C. Both carbon and water
  • D. Heat
9 During combustion, a substance reacts with
  • A. Hydrogen
  • B. Water
  • C. Oxygen
  • D. Carbon di oxide
10 Rusting of iron takes place in the presence of.
  • A. Moisture
  • B. O2
  • C. Both moisture and O2
  • D. Dry air

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