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  • Question
  • The hardest substance available on earth is


  • Options
  • A. Gold
  • B. Iron
  • C. Diamond
  • D. Platinum

  • Correct Answer
  • Diamond 


  • General Science problems


    Search Results


    • 1. Diamond is an allotropic form of

    • Options
    • A. germanium
    • B. carbon
    • C. silicon
    • D. sulphur
    • Discuss
    • 2. Tetraethyl lead is used as

    • Options
    • A. pain killer
    • B. fire extinguisher
    • C. mosquito repellent
    • D. petrol additive
    • Discuss
    • 3. Non stick cooking utensils are coated with

    • Options
    • A. Teflon
    • B. PVC
    • C. black paint
    • D. polystyrene
    • Discuss
    • 4. The gas usually filled in the electric bulb is

    • Options
    • A. nitrogen
    • B. hydrogen
    • C. carbon dioxide
    • D. oxygen
    • Discuss
    • 5. Which of the following is used as a lubricant?

    • Options
    • A. Graphite
    • B. Silica
    • C. Iron Oxide
    • D. Diamond
    • Discuss
    • 6. The name of the Laccadive, Minicoy and Amindivi islands was changed to Lakshadweep by an Act of Parliament in


    • Options
    • A. 1970
    • B. 1971
    • C. 1972
    • D. 1973
    • Discuss
    • 7. The members of Lok Sabha are


    • Options
    • A. directly elected by the people
    • B. indirectly elected
    • C. nominated
    • D. partly elected and partly nominated
    • Discuss
    • 8. The members of the state legislative assemblies are elected for a period of


    • Options
    • A. 2 years
    • B. 6 years
    • C. 5 years
    • D. 3 years
    • Discuss
    • 9. The present Lok Sabha is the


    • Options
    • A. 13th Lok Sabha
    • B. 14th Lok Sabha
    • C. 15th Lok Sabha
    • D. 16th Lok Sabha
    • Discuss
    • 10. The nature of the anti-Imperialist struggle was


    • Options
    • A. always peaceful and constitutional
    • B. initially constitutional and by large non-violent
    • C. based on continuous armed resistance
    • D. largely supported by foreign powers
    • Discuss


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