General Science MCQs with answers Page - 17

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Q. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

  • (A) CH2ClF
  • (B) C2H2
  • (C) PF5
  • (D) COCl2

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Q. Who discovered X-Ray ?

  • (A) Wilhelm Rontgen
  • (B) William Lee
  • (C) X Rollswick
  • (D) I Thompson

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Q. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton’s

  • (A) First law
  • (B) Second law
  • (C) Third law
  • (D) Fourth law

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Q. What is the unit of the physical quantity Entropy?

  • (A) watt per kelvin
  • (B) newton per kelvin
  • (C) pascal per kelvin
  • (D) joule per kelvin

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Q. Veins seen in the leaves serve the function of

  • (A) Photosynthesis
  • (B) Transpiration
  • (C) Storage
  • (D) Conduction

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Q. For a person having Hypermetropia , the near point is

  • (A) Greater than 25
  • (B) Greater than 50
  • (C) Less than 25
  • (D) Infinity

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Q. The BOD value of water indicate the

  • (A) Amount of organic debris
  • (B) Amount of oxygen used for biochemical oxidation
  • (C) Amount of oxygen used for biochemical reduction
  • (D) Amount of ozones used for biochemical oxidation

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Q. If the pressure is closed vessel is reduced by drawing out some gas , the mean free path of gas molecules will

  • (A) Increase or decrease upon the nature of the gas
  • (B) Increase
  • (C) Remain unchanged
  • (D) Decrease

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Q. Which of the following process are associated with plants during dark period ?

  • (A) Photosynthesis and Respiration
  • (B) Respiration and Transpiration
  • (C) Transpiration and conduction
  • (D) Conduction and Respiration

A

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Q. The S.I. unit of Pressure is:

  • (A) Newton
  • (B) Kg/m³
  • (C) Pascal
  • (D) Joule

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