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  • Question

  • Heavy water is


  • Options
  • A. deuterium oxide
  • B. PH7
  • C. rain water
  • D. tritium oxide

  • Correct Answer
  • deuterium oxide 

    • General Science problems

    Search Results

    • 1. Bromine is a

    • Options
    • A. black solid
    • B. red liquid
    • C. colourless gas
    • D. highly inflammable gas
      • Discuss
    • 2. Chlorophyll is a naturally occurring chelate compound in which central metal is

    • Options
    • A. copper
    • B. magnesium
    • C. iron
    • D. calcium
      • Discuss
    • 3. Which of the following is used in pencils?

    • Options
    • A. Graphite
    • B. Silicon
    • C. Charcoal
    • D. Phosphorous
      • Discuss
    • 4. Which of the following is not an isotope of hydrogen?

    • Options
    • A. Tritium
    • B. Deuterium
    • C. Protium
    • D. Yttrium
      • Discuss
    • 5. Soda water contains

    • Options
    • A. carbonic acid
    • B. sulphuric acid
    • C. carbon dioxide
    • D. nitrous acid
      • Discuss
    • 6. Permanent hardness of water may be removed by the addition of

    • Options
    • A. sodium carbonate
    • B. alum
    • C. potassium permanganate
    • D. lime
      • Discuss
    • 7. Carbon, diamond and graphite are together called

    • Options
    • A. allotropes
    • B. isomers
    • C. isomorphs
    • D. isotopes
      • Discuss
    • 8. Brass gets discoloured in air because of the presence of which of the following gases in air?

    • Options
    • A. Oxygen
    • B. Hydrogen sulphide
    • C. Carbon dioxide
    • D. Nitrogen
      • Discuss
    • 9. Balloons are filled with

    • Options
    • A. nitrogen
    • B. helium
    • C. oxygen
    • D. argon
      • Discuss
    • 10. Water is a good solvent of ionic salts because

    • Options
    • A. it has a high specific heat
    • B. it has no colour
    • C. it has a high dipole moment
    • D. it has a high boiling point
      • Discuss

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