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1 Biology Mcqs

Deficiency of Vitamin-A results in ?

  • Night blindness
  • Rickets
  • Scurvy
  • Hair fall
0 Comments
Correct Answer: A. Night blindness

Explanation:

Vitamin A is a fat-soluble vitamin that plays a vital role in maintaining ... Read More Details

2 Biology Mcqs

The lifespan of Red Blood Cells is __________ days?

  • 60
  • 120
  • 180
  • 240
0 Comments
Correct Answer: B. 120

Explanation:

Red Blood Cells (RBCs), also known as erythrocytes, are one of the most ... Read More Details

3 Physics MCQs

For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will ?

  • Also decrease
  • Increase
  • Remains constant
  • None of these
0 Comments
Correct Answer: B. Increase

Explanation:

The behavior of gases is explained by several gas laws, one of the ... Read More Details

4 Physics MCQs

The density of water is ?

  • 1 g/cm³
  • 1.5 g/cm³
  • 2 g/cm³
  • None of these
0 Comments
Correct Answer: A. 1 g/cm³

Explanation:

Density, in physics, is defined as the mass of a substance ... Read More Details

5 Physics MCQs

Radioactivity was discovered by ?

  • Kelvin
  • Thomson
  • Rutherford
  • Becquerel
0 Comments
Correct Answer: D. Becquerel

Explanation:

Radioactivity is the phenomenon in which unstable atomic nuclei release energy in the ... Read More Details

6 Chemistry MCQs

A device which converts chemical energy into electrical energy is called ?

  • Motor
  • Generator
  • Moving-coil galvanometer
  • Battery
0 Comments
Correct Answer: D. Battery

Explanation:

A device that converts chemical energy into electrical energy is called a battery ... Read More Details

7 Chemistry MCQs

The gas used in a refrigerator to cool water is ?

  • Nitrogen
  • Carbon dioxide
  • Methane
  • Tetrafluoroethane
0 Comments
Correct Answer: D. Tetrafluoroethane

Explanation:

Modern refrigerators rely on a specific type of gas known as a refrigerant ... Read More Details

8 Physics MCQs

The Sun is a __________?

  • Star
  • Planet
  • Asteroid
  • Meteor
0 Comments
Correct Answer: A. Star

Explanation:

The Sun is classified as a star, specifically a G-type main-sequence star (G ... Read More Details

9 Biology Mcqs

The average adult has a blood volume of about __________ liters.

  • 4
  • 5
  • 6
  • 7
0 Comments
Correct Answer: B. 5

Explanation:

Blood is one of the most essential fluids in the human body, responsible ... Read More Details

10 Physics MCQs

The most abundant element in the universe is __________.

  • Oxygen
  • Hydrogen
  • Carbon Dioxide
  • Silicon
0 Comments
Correct Answer: B. Hydrogen

Explanation:

The universe is made up of countless atoms forming stars, planets, and interstellar ... Read More Details