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  • Question
  • Water is a compound because it?


  • Options
  • A. it contains two different elements joined by chemical bond
  • B. it contains hydrogen & oxygen
  • C. it exists as solid, liquid or gas
  • D. it cannot be split up into simpler substances by chemicals means

  • Correct Answer
  • it contains two different elements joined by chemical bond 

    Explanation

    We know that All compounds are molecules, but not all molecules are compounds.

    Water is a molecule because it is made from atoms that have been chemically combined. It is also a compound because the atoms that make water are not all the same - some are oxygen and some are hydrogen.

     

    Hence, Water is a molecule and a compound.

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    General Science problems


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    • 1. Glass is made of the mixture of

    • Options
    • A. sand and silicates
    • B. quartz and sand
    • C. mica and quartz
    • D. mica and silicates
    • Discuss
    • 2. The first stage in the formation of coal is

    • Options
    • A. Lignite
    • B. Bituminous
    • C. Anthracite
    • D. Peat
    • Discuss
    • 3. Most important weather phenomena occur in the

    • Options
    • A. Troposphere
    • B. Stratosphere
    • C. Ionosphere
    • D. Thermosphere
    • Discuss
    • 4. Water is an excellent solvent because
    • Discuss
    • 5. Pollen grains in plants are produced in

    • Options
    • A. Flower
    • B. Stem
    • C. Roots
    • D. Leaves
    • Discuss
    • 6. What are the sides of the dna ladder made of

    • Options
    • A. nitrates and sugars
    • B. sugars and hydrates
    • C. sugars and phosphates
    • D. phosphates and nitrates
    • Discuss
    • 7. Study of fishes is called

    • Options
    • A. Amphiology
    • B. Phylumology
    • C. Zoology
    • D. Ichthyology
    • Discuss
    • 8. The concept of carbon credit originated from

    • Options
    • A. G-8 Summit, Hciligendamm
    • B. Earth Summit, Rio de Janeiro
    • C. Montreal Protocol
    • D. Kyoto Protocol
    • Discuss
    • 9. The term biodiversity refers to

    • Options
    • A. Range of genetic variation within a population
    • B. Total number of different species within a habitat
    • C. Both A & B
    • D. None of the above
    • Discuss
    • 10. Which of the following CANNOT be considered a single phase?

    • Options
    • A. a heterogeneous mixture
    • B. a pure solid
    • C. a pure liquid
    • D. a homogeneous mixture
    • Discuss


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