General Science Practice Question and Answer

Q: Which of the following statements about water is false? 2094 0

  • 1
    There is extensive intramolecular hydrogen bonding in the condensed phase.
    Correct
    Wrong
  • 2
    Water is oxidized to oxygen during photosynthesis.
    Correct
    Wrong
  • 3
    Ice formed by heavy water sinks in normal water.
    Correct
    Wrong
  • 4
    Water can act both as an acid and as a base.
    Correct
    Wrong
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Answer : 1. "There is extensive intramolecular hydrogen bonding in the condensed phase."
Explanation :

Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase. Explanation: Water possess intermolecular hydrogen bonding in the condensed phase.   Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.

Q: Which of the following carbohydrates is a polysaccharide? 1708 0

  • 1
    Fructose
    Correct
    Wrong
  • 2
    Cellulose
    Correct
    Wrong
  • 3
    Glucose
    Correct
    Wrong
  • 4
    Sucrose
    Correct
    Wrong
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Answer : 2. "Cellulose"
Explanation :

Answer: B) Cellulose Explanation: Carbohydrates are also called as saccharides are molecular compounds made from just three elements: carbon, hydrogen and oxygen.   Carbohydrates are: * a source of energy for the body e.g. glucose and a store of energy, e.g. starch in plants * building blocks for polysaccharides (giant carbohydrates), e.g. cellulose in plants and glycogen in the human body * components of other molecules eg DNA, RNA, glycolipids, glycoproteins, ATP   Types: 1. Monosaccharides (e.g. glucose) and 2. Disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars. 3. Other carbohydrate molecules are very large called Polysaccharides such as starch and cellulose.

Q: Stainless steel contains steel and 1501 0

  • 1
    manganese
    Correct
    Wrong
  • 2
    vanadium
    Correct
    Wrong
  • 3
    nickel
    Correct
    Wrong
  • 4
    chromium
    Correct
    Wrong
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Answer : 4. "chromium"
Explanation :

Answer: D) chromium Explanation: Stainless steel contains 18% chromium and 82% steel

Q:

The largest artery in human body is

1456 0

  • 1
    Aorta
    Correct
    Wrong
  • 2
    Capillary
    Correct
    Wrong
  • 3
    Vena cava
    Correct
    Wrong
  • 4
    Pulmonary vein
    Correct
    Wrong
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Answer : 1. "Aorta"

Q:

The basic structural and functional unit of living organisms is-

1665 0

  • 1
    Cell
    Correct
    Wrong
  • 2
    Tissue
    Correct
    Wrong
  • 3
    Organ
    Correct
    Wrong
  • 4
    Systems
    Correct
    Wrong
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Answer : 1. "Cell "

Q:

An element that does not occur in nature but can be produced artificially is 

2022 0

  • 1
    thorium
    Correct
    Wrong
  • 2
    radium
    Correct
    Wrong
  • 3
    plutonium
    Correct
    Wrong
  • 4
    uranium
    Correct
    Wrong
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Answer : 3. "plutonium "

Q:

Color of light is determined by its :

1060 0

  • 1
    dimension
    Correct
    Wrong
  • 2
    wavelength
    Correct
    Wrong
  • 3
    Intensity
    Correct
    Wrong
  • 4
    Velocity
    Correct
    Wrong
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Answer : 2. "wavelength"

Q:

Due to the increase in the amount of carbon dioxide in the atmosphere-

591 0

  • 1
    Rises in temperature
    Correct
    Wrong
  • 2
    Decrease in temperature
    Correct
    Wrong
  • 3
    Change according to season
    Correct
    Wrong
  • 4
    Continuous decrease in temperature
    Correct
    Wrong
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Answer : 1. "Rises in temperature"

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