Basic Science Practice Question and Answer

Q:

Iron is obtained by which of the following minerals?

1721 0

  • 1
    Limestone
    Correct
    Wrong
  • 2
    Pitch Bland
    Correct
    Wrong
  • 3
    Monozite sand
    Correct
    Wrong
  • 4
    Hematite
    Correct
    Wrong
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Answer : 4. "Hematite"
Explanation :

The iron minerals that are at present used as ores are hematite, magnetitelimonite, and siderite.

Q:

Plants receive their nutrients mainly from in the following ?

1716 0

  • 1
    atmosphere
    Correct
    Wrong
  • 2
    chlorophyll
    Correct
    Wrong
  • 3
    light
    Correct
    Wrong
  • 4
    soil
    Correct
    Wrong
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Answer : 4. "soil"

Q:

The reason for the browning of the cut apple is present in the apple-

1715 0

  • 1
    Calcium
    Correct
    Wrong
  • 2
    Zinc
    Correct
    Wrong
  • 3
    Iron
    Correct
    Wrong
  • 4
    Iodine
    Correct
    Wrong
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Answer : 4. "Iodine"

Q:

Polythene is industrially produced by polymerisation of

1713 0

  • 1
    Methane
    Correct
    Wrong
  • 2
    Acetylene
    Correct
    Wrong
  • 3
    Ethylene
    Correct
    Wrong
  • 4
    Styrene
    Correct
    Wrong
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Answer : 3. "Ethylene"

Q:

The velocity of light is maximum in ______.

1707 0

  • 1
    Diamond
    Correct
    Wrong
  • 2
    Water
    Correct
    Wrong
  • 3
    Vacuum
    Correct
    Wrong
  • 4
    Glass
    Correct
    Wrong
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Answer : 3. "Vacuum"

Q:

Which of the following non-metals are in liquid state at room temperature?

1694 0

  • 1
    Carbon
    Correct
    Wrong
  • 2
    Sulfur
    Correct
    Wrong
  • 3
    Iodine
    Correct
    Wrong
  • 4
    Bromine
    Correct
    Wrong
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Answer : 4. "Bromine"

Q:

Which of the following is not an area of coral reef?

1688 0

  • 1
    Gulf of Mannar
    Correct
    Wrong
  • 2
    Gulf of Cambay
    Correct
    Wrong
  • 3
    Lakshadweep
    Correct
    Wrong
  • 4
    Andaman and Nicobar Islands
    Correct
    Wrong
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Answer : 2. "Gulf of Cambay"

Q:

Speed of sound is maximum?

1684 0

  • 1
    in air
    Correct
    Wrong
  • 2
    In water
    Correct
    Wrong
  • 3
    in vacuum
    Correct
    Wrong
  • 4
    Steel
    Correct
    Wrong
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Answer : 4. "Steel"

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