Chemistry MCQs with answers Page - 6

Here, you will find a collection of MCQ questions on Chemistry. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. The metal does not give H2 on treatment with dilute HCL is

  • (A) Zn
  • (B) Fe
  • (C) Ag
  • (D) Ca

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Q. The number of g-molecule of oxygen in 6.02 x 10^24 CO molecules is

  • (A) 1 gram of molecule
  • (B) 0.5 gram of molecule
  • (C) 5 gram of molecule
  • (D) 10 gram of molecule

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Q. The most extensive, commercially useful source of thorium as monazite sand occurs in India at

  • (A) Orissa coast
  • (B) Travancore coast
  • (C) West Bengal coast
  • (D) Gujarat coast

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Q. The main active constituent of tea and coffee is

  • (A) nicotine
  • (B) chlorophyll
  • (C) caffeine
  • (D) aspirin

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Q. The maximum number of isomers for an alkene with molecular formula C4H8 is

  • (A) 5
  • (B) 4
  • (C) 2
  • (D) 3

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Q. The hardest form of carbon is

  • (A) coke
  • (B) graphite
  • (C) diamond
  • (D) charcoal

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Q. The most important ore of aluminium is

  • (A) bauxite
  • (B) magnetite
  • (C) monazite
  • (D) haematite

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Q. The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

  • (A) an addition reaction
  • (B) a condensation reaction
  • (C) an oxidation reaction
  • (D) an elimination reaction

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Q. The number of electrons presents in H+ is

  • (A) zero
  • (B) one
  • (C) two
  • (D) three

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Q. The hottest part of the gas flame is known as

  • (A) luminous zone
  • (B) dark zone
  • (C) blue zone
  • (D) non-luminous zone

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