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  • Question
  • Ammonia can be dried by


  • Options
  • A. Sulphuric acid
  • B. Calcium oxide
  • C. Phosphorus pentoxide
  • D. Calcium Chloride

  • Correct Answer
  • Calcium Chloride 

    Explanation

    Ammonia can be dried by Calcium Chloride or calcium hydroxide.

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    Chemistry problems


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    • 1. Which properties are characteristic of the group 1 metals?

    • Options
    • A. Low melting points
    • B. Produce hydrogen when react with water
    • C. Soft in nature
    • D. All of the above
    • Discuss
    • 2. The luster of a metal is due to presence of free electrons.

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 3. Which kind of energy is stored in a chemical bond?

    • Options
    • A. Potential energy
    • B. Kinetic energy
    • C. Both A & B
    • D. None of the above
    • Discuss
    • 4. which of the following molecule contains a nonpolar covalent bond?

    • Options
    • A. Br2
    • B. CO2
    • C. CCl4
    • D. CO
    • Discuss
    • 5. Arrange the following compounds in order of increasing acidity?

    • Options
    • A. o-cresol < phenol < o-nitrophtenol
    • B. phenol < o-nitrophtenol < o-cresol
    • C. o-nitrophtenol < o-cresol < phenol
    • D. None of the above
    • Discuss
    • 6. Kaolin is chemically classified as

    • Options
    • A. Argillaceous rock
    • B. Silicious rock
    • C. Metamorphic rock
    • D. Calcareous rock
    • Discuss
    • 7. Shock resisting steels should have

    • Options
    • A. toughness
    • B. low wear resistance
    • C. low tensile strength
    • D. low hardness
    • Discuss
    • 8. Non metal found in liquid state?

    • Options
    • A. Chlorine
    • B. Bromine
    • C. Fluorine
    • D. Iodine
    • Discuss
    • 9. Permanent hardness of water may be removed by the addition of

    • Options
    • A. Alum
    • B. Lime
    • C. Sodium Carbonate
    • D. Potassium Permanganate
    • Discuss
    • 10. Diamond is harder than Graphite because of

    • Options
    • A. tetrahedral structure of diamond
    • B. difference of crystalline structures
    • C. difference of layers of atoms
    • D. hexagonal structure of graphite
    • Discuss


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