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  • Question
  • Amalgams are


  • Options
  • A. highly coloured alloys
  • B. alloys which contain mercury as one of the contents
  • C. alloys which have great resistance to abrasion
  • D. alloys which contain carbon

  • Correct Answer
  • alloys which contain mercury as one of the contents 


  • General Science problems


    Search Results


    • 1. Which of the following are the ingredients of gun metal?

    • Options
    • A. Iron, Zinc, Titanium
    • B. Iron, tin
    • C. Iron, Brass, Tin
    • D. Copper, Tin
    • Discuss
    • 2. From which mineral is radium obtained?

    • Options
    • A. Rutile
    • B. Haematite
    • C. Limestone
    • D. Pitchblende
    • Discuss
    • 3. Which of the following metals forms an amalgam with other metals?

    • Options
    • A. Tin
    • B. Mercury
    • C. Lead
    • D. Zinc
    • Discuss
    • 4. Air is a/an

    • Options
    • A. compound
    • B. element
    • C. electrolyte
    • D. mixture
    • Discuss
    • 5. Which of the following is in liquid form at room temperature?

    • Options
    • A. Lithium
    • B. Sodium
    • C. Francium
    • D. Cerium
    • Discuss
    • 6. LPG consists of mainly

    • Options
    • A. methane, ethane and hexane
    • B. ethane, hexane and nonane
    • C. methane, hexane and nonane
    • D. methane, butane and propane
    • Discuss
    • 7. Potassium Permanganate is used for purifying drinking water, because

    • Options
    • A. it is a sterilising agent
    • B. it dissolves the impurities of water
    • C. it is a reducing agent
    • D. it is an oxidising agent
    • Discuss
    • 8. Which metal pollute the air of a big city?

    • Options
    • A. Copper
    • B. Chromium
    • C. Lead
    • D. Cadmium
    • Discuss
    • 9. The main constituents of pearls are

    • Options
    • A. calcium oxide and ammonium chloride
    • B. calcium carbonate and magnesium carbonate
    • C. aragonite and conchiolin
    • D. ammonium sulphate and sodium carbonate
    • Discuss
    • 10. Which of the following does not contain a coinage metal?

    • Options
    • A. Silver and Gold
    • B. Zinc and Gold
    • C. Copper and Silver
    • D. Copper and Gold
    • Discuss


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