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 Compustion is a.
  • A. Physical Change
  • B. Chemical change
  • C. Thermal change
  • D. None of these
2 A physical change occurs when.
  • A. Iron rusts
  • B. Solution of common salt is heated
  • C. A piece of wood burns
  • D. Sygar us geated strongly
3 What happens to water on heating.
  • A. Evaporates
  • B. Condense
  • C. Freez
  • D. None of these
4 Zince oxide is ............... solid substances.
  • A. Red
  • B. White
  • C. Yellow
  • D. Blue
5 A gas produced on heating solid potassium chlorate is.
  • A. Hydrogen
  • B. Carbon dioxide
  • C. Oxygen
  • D. Methane
6 Chemical reaction of oxygen with other substances is called.
  • A. Oxidation
  • B. Reduction
  • C. Rusting
  • D. None of these
7 Silver+ hydrogen suolphide+Oxygen--------------- Silver sulphide + water The above reaction is known as.
  • A. Combustion
  • B. Rusting
  • C. Tarmishing
  • D. Dehydration
8 Freezing of a liquid is a
  • A. Chemical change
  • B. Chemicla property
  • C. Physical change
  • D. None of these
9 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.
10 Product fo combustion is.
  • A. C
  • B. O2
  • C. CO2
  • D. All of these

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