Chemistry MCQs with answers Page - 23

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Q. Which among the following happens in an oxidation reaction ?

  • (A) Electrons are gained
  • (B) Electrons are lost
  • (C) Protons are gained
  • (D) Protons are lost

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Q. What is the common name of analgesic and antipyretic drug acetylsalicylic acid?

  • (A) Paracetamol
  • (B) Aspirin
  • (C) Wintergreen
  • (D) Trazodone

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Q. Consider the following Statements:
1. Radon is the heaviest gas.
2. Astatine is the rarest element on the earth.
3. Graphite which is a non-metal is also an electrical conductor.
Which among the above Statement(s) is/are correct?

  • (A) Only 2
  • (B) 1 and 2
  • (C) 2 and 3
  • (D) 1, 2 and 3

A

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Q. Which among the following impurity in drinking water causes the “Bamboo Spine” disorder?

  • (A) Nitrate
  • (B) Fluorides
  • (C) Arsenic
  • (D) Sulphides

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Q. Which among the following is not a noble gas?

  • (A) Neon
  • (B) Radon
  • (C) Argon
  • (D) Bromine

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Q. Consider the following compounds:
1.Isoprene
2.Hydrogen
3.Oxygen
4.Carbon dioxide
5. Carbon monoxide Which of the compounds are emitted by trees?

  • (A) 2, 3, 4 and 5
  • (B) 1, 4 and 5
  • (C) 2, 3 and 4
  • (D) 1, 3 and 4

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Q. Cooking gas is a mixture of

  • (A) Methane and ethylene
  • (B) Carbon dioxide and oxygen
  • (C) Butane and propane
  • (D) Carbon monoxide and carbon dioxide

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Q. Thermal electricity is generated by using which of these ?

  • (A) Coal only
  • (B) Coal and Natural Gas only
  • (C) Coal, Natural Gas and Petroleum
  • (D) None of these

A

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Q. Which of the following is the major constituent of LPG?

  • (A) Methane
  • (B) Ethane
  • (C) Propane
  • (D) Butane

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