Basic Science Practice Question and Answer

Q:

Speed of sound is maximum?

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  • 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"

Q:

Which is the most important organ of the plant in terms of life cycle?

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  • 1
    Stem
    Correct
    Wrong
  • 2
    Root
    Correct
    Wrong
  • 3
    Flower
    Correct
    Wrong
  • 4
    Leaf
    Correct
    Wrong
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Answer : 3. "Flower "

Q:

When we go upstairs in the atmosphere?

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  • 1
    heat is low and pressure increases
    Correct
    Wrong
  • 2
    temperature increases and pressure decreases
    Correct
    Wrong
  • 3
    Both temperature and pressure increase
    Correct
    Wrong
  • 4
    Both temperature and pressure decrease
    Correct
    Wrong
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Answer : 4. "Both temperature and pressure decrease"

Q:

Polythene is industrially produced by polymerisation of

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

Q:

Iron is obtained by which of the following minerals?

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  • 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:

Maximum density of water is-

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  • 1
    0°C
    Correct
    Wrong
  • 2
    100°C
    Correct
    Wrong
  • 3
    25°C
    Correct
    Wrong
  • 4
    4°C
    Correct
    Wrong
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Answer : 4. "4°C"

Q:

In which of the following industries is mica as a raw material?

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  • 1
    Cement
    Correct
    Wrong
  • 2
    Glass and Pottery
    Correct
    Wrong
  • 3
    Iron and Steel
    Correct
    Wrong
  • 4
    Electrical
    Correct
    Wrong
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Answer : 4. "Electrical"

Q:

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

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

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