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1 Chemistry MCQs

Turpentine is obtained from?

  • Oak tree
  • Pine tree
  • Birch tree
  • Lemon tree
0 Comments
Correct Answer: B. Pine tree

Explanation:

Turpentine is a volatile, flammable liquid obtained primarily from the resin of pine ... Read More Details

2 Physics MCQs

What is Newton’s Third Law of Motion?

  • For every action, there is an equal and opposite reaction.
  • Attraction or repulsion between two charges.
  • The volume of a given mass of gas increases or decreases.
  • At constant temperature, the volume of a given mass of gas varies inversely.
0 Comments
Correct Answer: A. For every action, there is an equal and opposite reaction.

Explanation:

Newton’s Third Law of Motion is one of the fundamental principles of classical ... Read More Details

3 Chemistry MCQs

What is the chemical formula for water?

  • NaAlO₂
  • H₂O
  • Al₂O₃
  • CaSiO₃
0 Comments
Correct Answer: B. H₂O

Explanation:

Water is one of the most essential compounds for life and is represented ... Read More Details

4 Physics MCQs

The inert gas used instead of nitrogen in the air for deep-sea divers is:

  • Argon
  • Xenon
  • Helium
  • Krypton
0 Comments
Correct Answer: C. Helium

Explanation:

Deep-sea diving involves breathing gases under high-pressure conditions. At great depths, nitrogen, which ... Read More Details

5 Chemistry MCQs

The ozone (O₃) molecule contains which type of chemical bonding?

  • Dative bond
  • Covalent bond
  • Both A and B
  • Ionic bond
0 Comments
Correct Answer: C. Both A and B

Explanation:

Ozone (O₃) is a triatomic molecule composed of three oxygen atoms. Its chemical ... Read More Details

6 Physics MCQs

The gas usually filled inside an electric bulb is:

  • Nitrogen
  • Hydrogen
  • Carbon dioxide
  • Oxygen
0 Comments
Correct Answer: A. Nitrogen

Explanation:

Electric bulbs, particularly incandescent bulbs, contain a filament that heats up and emits ... Read More Details

7 Chemistry MCQs

Non-stick cooking utensils are coated with which substance?

  • Black paint
  • PVC
  • Teflon
  • Polystyrene
0 Comments
Correct Answer: C. Teflon

Explanation:

Non-stick cooking utensils are coated with Teflon, a synthetic polymer known for its ... Read More Details

8 Chemistry MCQs

Which metals are the main ingredients of gun metal?

  • Iron, Zinc, and Titanium
  • Iron and Tin
  • Iron, Brass, and Tin
  • Copper, Tin, and Zinc
0 Comments
Correct Answer: D. Copper, Tin, and Zinc

Explanation:

Gun metal is a type of alloy, which is a mixture of metals ... Read More Details

9 Biology Mcqs

The study of aging is called:

  • Gerontology
  • Histology
  • Physiology
  • Anthropology
0 Comments
Correct Answer: A. Gerontology

Explanation:

The study of aging and the biological, psychological, and social processes associated with ... Read More Details

10 Biology Mcqs

Blood does not coagulate inside the body due to the presence of which substance?

  • Haemoglobin
  • Fibrin
  • Heparin
  • Plasma
0 Comments
Correct Answer: C. Heparin

Explanation:

Blood has a natural ability to coagulate, or form clots, to stop bleeding ... Read More Details

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