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  • Question
  • Oxygen molecule is ______.


  • Options
  • A. Monoatomic
  • B. Diatomic
  • C. Triatomic
  • D. Polyatomic

  • Correct Answer
  • Diatomic 

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    Chemistry problems


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    • 1. Molybdenite is an ore/mineral of

    • Options
    • A. Molybdenum
    • B. Nickel
    • C. Silver
    • D. Tin
    • Discuss
    • 2. _________ gets converted to phosgene, when exposed to sunlight.

    • Options
    • A. Chloroform
    • B. Acetone
    • C. Benzene
    • D. Propylene
    • Discuss
    • 3. Carnotite is an ore/mineral of _____.

    • Options
    • A. Beryllium
    • B. Chromium
    • C. Uranium
    • D. Copper
    • Discuss
    • 4. _____ is the major component of natural gas.

    • Options
    • A. Acetone
    • B. Methane
    • C. Chlorine
    • D. Hexane
    • Discuss
    • 5. What is used to prevent freezing of fuel in space crafts?

    • Options
    • A. Benzene
    • B. Glycol
    • C. Acetylene
    • D. Ester
    • Discuss
    • 6. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

    • Options
    • A. BBr3
    • B. NH3
    • C. CH2N2
    • D. CCl2F2
    • Discuss
    • 7. According to Dalton?s Atomic Theory, the smallest indivisible particles of matter is called ______.

    • Options
    • A. molecule
    • B. atom
    • C. compound
    • D. element
    • Discuss
    • 8. Atomic number of which of the following elements is greater than that of Calcium?

    • Options
    • A. Chlorine
    • B. Argon
    • C. Sulphur
    • D. Scandium
    • Discuss
    • 9. Which among the following is false about acids?

    • Options
    • A. They give H+ ions in aqueous solution
    • B. Most acids contain hydrogen
    • C. They turn blue litmus red
    • D. They are bad conductor of electricity in aqueous solution
    • Discuss
    • 10. Pentane has _____ structural isomers.

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss


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