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1 Chemistry MCQs

Dry ice is ?

  • Methane hydrate
  • Liquid Nitrogen
  • Solid Carbon dioxide
  • Frozen Water
0 Comments
Correct Answer: C. Solid Carbon dioxide

Explanation:

Dry ice is the solid form of carbon dioxide (CO₂). Unlike ordinary ice, ... Read More Details

2 Biology Mcqs

Deficiency of following vitamin decreases hemoglobin production?

  • Biotin
  • Thiamine
  • Niacin
  • Pyridoxine
0 Comments
Correct Answer: D. Pyridoxine

Explanation:

Hemoglobin is a vital protein found in red blood cells that is responsible ... Read More Details

3 Chemistry MCQs

Chemical name of vinegar is ?

  • Sodium Nitrate
  • Dilute acetic acid
  • Chloride of lime
  • Calcium
0 Comments
Correct Answer: B. Dilute acetic acid

Explanation:

Vinegar is a common household liquid widely used in cooking, food preservation, cleaning, ... Read More Details

4 Physics MCQs

Hygrometer is used for measuring the ?

  • Speed of sound
  • Density of milk
  • Humidity of air
  • Specific gravity of liquids
0 Comments
Correct Answer: C. Humidity of air

Explanation:

A hygrometer is a scientific instrument used to measure the humidity of air, ... Read More Details

5 Chemistry MCQs

Bronze is an alloy of ?

  • Copper and Zinc
  • Tin and Zinc
  • Copper and Tin
  • Iron and Zinc
0 Comments
Correct Answer: C. Copper and Tin

Explanation:

Bronze is a well-known metal alloy that has been used by humans for ... Read More Details

6 Everyday Science MCQs

which-material-is-most-elastic

  • Steel
  • Rubber
  • Sponge
  • Glass
0 Comments
Correct Answer: A. Steel

Explanation:

Elasticity is a fundamental property of materials that measures their ability to return ... Read More Details

7 Everyday Science MCQs

Orbital period of the planet Mercury around the sun is ?

  • 88 days
  • 126 days
  • 98 days
  • None of these
0 Comments
Correct Answer: A. 88 days

Explanation:

The orbital period of a planet refers to the time it takes to ... Read More Details

8 Everyday Science MCQs

The most splendid and the most magnificent constellation on the sky is ?

  • Orion
  • Columbia
  • Canis Major
  • None of these
0 Comments
Correct Answer: A. Orion

Explanation:

The night sky is dotted with thousands of stars arranged in recognizable patterns ... Read More Details

9 Biology Mcqs

Eugenics is the study of ?

  • Altering human beings by changing their genetic components
  • People of European region
  • Different races of mankind
  • None of these
0 Comments
Correct Answer: A. Altering human beings by changing their genetic components

Explanation:

Eugenics is a field of study focused on improving or altering the genetic ... Read More Details

10 Chemistry MCQs

Diamond is a very expensive ornament. It is composed of a single element ?

  • Carbon
  • Gold
  • Silver
  • None of these
0 Comments
Correct Answer: A. Carbon

Explanation:

A diamond is one of the most precious natural substances found on Earth, ... Read More Details