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2nd Unit

9th class General Science Chapter 2 (English Medium)

Here you can prepare 9th General Science chapter 2 online MCQ test with answers (Unit 2 Chemistry of Life). Click the button for 100% free full practice test.

Matric Part 1/9th Class General Science Chapter 2 MCQ Test With Answer for Unit 2 Chemistry of Life

Matric Part 1/9th Class General Science Chapter 2 MCQ Test With Answer for Unit 2 Chemistry of Life

Sr. # Questions Answers Choice
1 The process which increases the temperature in the temperatureis called
  • A. Photosynthesis
  • B. Oxidation
  • C. Greenhouse effect
  • D. Evaporation
2 The process which loops the amount of nitrogen constant in air is
  • A. nitrogen fixation
  • B. nitrogen cycle
  • C. oxidation
  • D. photosynthesis
3 The percentage of nitrogen in air is
  • A. 76%
  • B. 77%
  • C. 78%
  • D. 79%
4 Bucky Ball is teh third form of pure.
  • A. Carbon
  • B. Graphite
  • C. Magnesium
  • D. Diamond
5 It is an important constituent of DNA and RNA our body
  • A. Iron
  • B. Chlorine
  • C. Fluorine
  • D. Phosphorus
6 Ice floats on the surface of water due to.
  • A. Higher density
  • B. Lower density
  • C. Normal density
  • D. Very High density
7 It is an organic compound
  • A. natural gas
  • B. ammonium
  • C. water
  • D. sodium chlorides
8 The process which increases the amount of carbon dioxide in air is called
  • A. photosynthesis
  • B. respiration
  • C. oxidation
  • D. vaporization
9 Oxygen and nitrogen react to form.
  • A. Nitric Acid
  • B. Nitrogen oxide
  • C. Nitrogen peroxide
  • D. Nitrate
10 The amout of carbon dioxide int eh air is increased by.
  • A. Photosynthesis
  • B. Respiration
  • C. Burning
  • D. Evaporation

Top Scorers of 9th Class General Science Chapter 2 Chemistry and Life English Medium KPK Boards Online Mcqs

R

Reema Nk

Lahore13 - Nov - 2022

14/15
01 Mins 53 Sec
N

Nida Shah

Lahore18 - Oct - 2022

10/15
02 Mins 29 Sec

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