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  • Question
  • Manganite is an ore/mineral of


  • Options
  • A. Beryllium
  • B. Chromium
  • C. Manganese
  • D. Copper

  • Correct Answer
  • Manganese 

  • Tags: Bank Exams

    Chemistry problems


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    • 1. ________ is used for making vinegar.

    • Options
    • A. Tartaric acid
    • B. Malic acid
    • C. Oxalic acid
    • D. Acetic acid
    • Discuss
    • 2. ______________ is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.

    • Options
    • A. A)
    • B. Glycogen
    • C. Pectin
    • D. Chitin
    • Discuss
    • 3. Which of the following is also used as a Bio fertilizer?

    • Options
    • A. Urea
    • B. Ammonia
    • C. Uric Acid
    • D. Nitrates
    • Discuss
    • 4. Which of the following is false?

    • Options
    • A. Hydrogen atom is roughly a third of the mass of tritium
    • B. Deuterium is called heavy hydrogen
    • C. Deuterium atom has 1 neutron
    • D. Protium is the rarest isotope of hydrogen
    • Discuss
    • 5. Methane an air pollutant is produced ______.

    • Options
    • A. by action of ultraviolet light on nitrogenous compounds.
    • B. as a by-product of manufacturing ammoniacal fertilizers
    • C. by burning of coal in insufficient air
    • D. by digestion of food by animals
    • Discuss
    • 6. Fire extinguishers emit which gas?

    • Options
    • A. Carbon monoxide
    • B. Chlorine
    • C. Carbon dioxide
    • D. Nitrogen
    • Discuss
    • 7. Atomic number of an atom gives the number of which of the following ?

    • Options
    • A. electrons
    • B. protons
    • C. neutrons
    • D. neutrons and protons
    • Discuss
    • 8. Acetic Acid is another name for which of the following?

    • Options
    • A. Vinegar
    • B. Baking Soda
    • C. Copper Sulphate
    • D. Magnesium Oxide
    • Discuss
    • 9. The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.

    • Options
    • A. Vinegar
    • B. Ash
    • C. Baking Soda
    • D. Copper
    • Discuss
    • 10. Bauxite is used as raw material by which industry

    • Options
    • A. Aluminium
    • B. Iron
    • C. Steel
    • D. Gold
    • Discuss


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