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1 Biology Mcqs

In which part of the human body are involuntary muscles present?

  • Brain
  • Tongue
  • Digestive system
  • Limbs
0 Comments
Correct Answer: C. Digestive system

Explanation:

Involuntary muscles are the muscles in the human body that work automatically, without ... Read More Details

2 Physics MCQs

Transistors do not need a warm-up period because they have no ?

  • Plate
  • Grid
  • Filament
  • None of the above
0 Comments
Correct Answer: C. Filament

Explanation:

Transistors do not need a warm-up period because they have no filament. To ... Read More Details

3 Biology Mcqs

Which organ is considered as the chemical factory of the human body?

  • Stomach
  • Intestine
  • Liver
  • Kidneys
0 Comments
Correct Answer: C. Liver

Explanation:

The liver is considered the chemical factory of the human body because it ... Read More Details

4 Chemistry MCQs

Which is the heaviest naturally occurring element?

  • Radium
  • Platinum
  • Uranium
  • Cadmium
0 Comments
Correct Answer: C. Uranium

Explanation:

The heaviest naturally occurring element on Earth is Uranium (U). It has an ... Read More Details

5 Chemistry MCQs

Which is the heaviest man-made element discovered so far?

  • Promethium
  • Ununoctium (Oganesson)
  • Francium
  • Technetium
0 Comments
Correct Answer: B. Ununoctium (Oganesson)

Explanation:

The heaviest man-made element discovered so far is Oganesson (Og), which was formerly ... Read More Details

6 Physics MCQs

Which instrument is used for viewing or observing the Sun?

  • Stroboscope
  • Heliograph
  • Solograph
  • None of these
0 Comments
Correct Answer: B. Heliograph

Explanation:

A heliograph is an instrument primarily used for observing, recording, or communicating using ... Read More Details

7 Chemistry MCQs

Which of the following is a strong-smelling agent added to LPG cylinders to help detect gas leakage?

  • Nitrogen Peroxide
  • Ethyl Mercaptan
  • Carbon Monoxide
  • Sulphur Dioxide
0 Comments
Correct Answer: B. Ethyl Mercaptan

Explanation:

Liquefied Petroleum Gas (LPG) is widely used as a fuel for domestic, commercial, ... Read More Details

8 Biology Mcqs

A crescograph is a device used to measure the growth of ?

  • Microorganisms
  • Plants
  • Humans
  • Pollution
0 Comments
Correct Answer: B. Plants

Explanation:

A crescograph is a scientific device used to measure the rate of growth ... Read More Details

9 Physics MCQs

Which of the following is used in water purification?

  • Osmosis
  • Reverse Osmosis
  • Cytolysis
  • Turgor PressureReverse Osmosis (RO) is a widely used and highly efficient process for water purification. It works on the principle of osmosis but in the opposite direction. In natural osmosis, water moves from a region of lower solute concentration to a
0 Comments
Correct Answer: B. Reverse Osmosis

Explanation:

Reverse Osmosis (RO) is a widely used and highly efficient process for water ... Read More Details

10 Chemistry MCQs

Which is the lightest metal?

  • Lithium
  • Sodium
  • Magnesium
  • Aluminium
0 Comments
Correct Answer: A. Lithium

Explanation:

The lightest metal known is lithium (Li). It is the first metal in ... Read More Details