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  • Question
  • When the nucleus of Uranium is bombarded with neutrons, it breaks up into two nuclei of nearly equal mass. this process is called


  • Options
  • A. nuclear fission
  • B. nuclear fusion
  • C. physical change
  • D. artificial radioactivity

  • Correct Answer
  • nuclear fission 


  • Chemistry problems


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    • 1. Which of the following is an element

    • Options
    • A. alumina
    • B. brass
    • C. graphite
    • D. silicon
    • Discuss
    • 2. PAS is a drug used in the treatment of

    • Options
    • A. tuberculosis
    • B. Cancer
    • C. typhoid
    • D. malaria
    • Discuss
    • 3. Water always contains hydrogen and oxygen in the ratio 1:8 by weight.This is in accordance with the

    • Options
    • A. Law of Multiple Proportions
    • B. Law of Definite Proportion
    • C. Law of Conservation of mass
    • D. Law of Reciprocal Proportions
    • Discuss
    • 4. Which of the following is the lightest metal?

    • Options
    • A. Lithium
    • B. Silver
    • C. Mercury
    • D. Lead
    • Discuss
    • 5. A substance that cannot be broken down into simpler substances

    • Options
    • A. Heterogenous mixure
    • B. Compound
    • C. Homogenous mixture
    • D. Element
    • Discuss
    • 6. Metal present in chocolate wrappers is

    • Options
    • A. Aluminium
    • B. Haemoglobin
    • C. Chalk
    • D. Chlorophyll
    • Discuss
    • 7. Glass is a.........mixture of metallic...........

    • Options
    • A. homogenous, sulphates
    • B. homogenous, silicates
    • C. heterogenous, carbonates
    • D. heterogenous, nitrates
    • Discuss
    • 8. Is boiling water a chemical change?
    • Discuss
    • 9. What are the two types of pure substances?
    • Discuss
    • 10. What element is found in all organic compounds?

    • Options
    • A. Hydrogen
    • B. Calcium
    • C. Nitrogen
    • D. Carbon
    • Discuss


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