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1 Chemistry MCQs

Which of the following is the major constituent of LPG (Liquefied Petroleum Gas)?

  • Methane
  • Ethane
  • Hydrogen
  • Butane
0 Comments
Correct Answer: D. Butane

Explanation:

Liquefied Petroleum Gas (LPG) is a flammable mixture of hydrocarbon gases used widely ... Read More Details

2 Chemistry MCQs

PVC (Polyvinyl Chloride) is obtained by the polymerization of which compound?

  • Propane
  • Vinyl chloride
  • Styrene
  • None of these
0 Comments
Correct Answer: B. Vinyl chloride

Explanation:

Polyvinyl Chloride (PVC) is one of the most widely used synthetic polymers in ... Read More Details

3 Biology Mcqs

Trachoma is a disease that affects which part of the body?

  • Brain
  • Spinal cord
  • Larynx
  • Eye
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Correct Answer: D. Eye

Explanation:

Trachoma is a contagious infectious disease that primarily affects the eyes, specifically the ... Read More Details

4 Chemistry MCQs

Bone ash primarily contains which compound?

  • Calcium sulphate
  • Phosphoric sulphate
  • Calcium phosphate
  • None of these
0 Comments
Correct Answer: C. Calcium phosphate

Explanation:

Bone ash is the residue obtained when bones are heated strongly in a ... Read More Details

5 Everyday Science MCQs

What is the lowest temperature ever recorded on Earth?

  • –89.2 °C
  • –86.2 °C
  • –83.2 °C
  • –92.2 °C
0 Comments
Correct Answer: A. –89.2 °C

Explanation:

The lowest temperature ever recorded on Earth is –89.2 °C, which occurred at ... Read More Details

6 Chemistry MCQs

Saccharin is chemically derived from which compound?

  • Toluene
  • Phenol
  • Propane
  • None of these
0 Comments
Correct Answer: A. Toluene

Explanation:

Saccharin is a widely used artificial sweetener, often hundreds of times sweeter than ... Read More Details

7 Chemistry MCQs

Which of the following is not a donor atom?

  • Phosphorus
  • Antimony
  • Arsenic
  • Aluminum
0 Comments
Correct Answer: D. Aluminum

Explanation:

In chemistry, a donor atom is an atom in a molecule that can ... Read More Details

8 Physics MCQs

A man exerts the most weight on the Earth when he is in which position?

  • Sitting position
  • Standing position
  • Lying position
  • None of these
0 Comments
Correct Answer: B. Standing position

Explanation:

Weight is the force with which a body is pulled towards the Earth ... Read More Details

9 Chemistry MCQs

Which metal is extracted from seawater?

  • Potassium
  • Magnesium
  • Aluminum
  • None of these
0 Comments
Correct Answer: B. Magnesium

Explanation:

Seawater contains many dissolved minerals, including salts of sodium, magnesium, calcium, and potassium. ... Read More Details

10 Chemistry MCQs

Which of the following is the purest form of carbon?

  • Anthracite
  • Lampblack
  • Graphite
  • None of these
0 Comments
Correct Answer: A. Anthracite

Explanation:

Carbon is a versatile element found in many forms, ranging from soft, amorphous ... Read More Details