Chemistry Practice Question and Answer

Q:

Which compound is formed when copper is burnt in air?

781 0

  • 1
    copper hydroxide
    Correct
    Wrong
  • 2
    copper hydride
    Correct
    Wrong
  • 3
    Copper Oxide
    Correct
    Wrong
  • 4
    nothing
    Correct
    Wrong
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Answer : 3. "Copper Oxide"

Q:

Which of the following is incorrect with reference to hypophysis?

780 0

  • 1
    It lies a bony depression called sell turcica
    Correct
    Wrong
  • 2
    Connected to hypothalamus through infundibulum
    Correct
    Wrong
  • 3
    Anatomically divided into adeno-hypophysis and neurohypophysis
    Correct
    Wrong
  • 4
    Neurohypophysis synthesizes ADH and OT
    Correct
    Wrong
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Answer : 4. "Neurohypophysis synthesizes ADH and OT"

Q:

Which of the following has the least melting point?

778 1

  • 1
    Carbon
    Correct
    Wrong
  • 2
    Silver
    Correct
    Wrong
  • 3
    Mercury
    Correct
    Wrong
  • 4
    Gold
    Correct
    Wrong
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Answer : 3. "Mercury "

Q:

Which of the following non-metals are kept immersed in water?

776 0

  • 1
    Sulfur
    Correct
    Wrong
  • 2
    White Phosphorus
    Correct
    Wrong
  • 3
    Red Phosphorus
    Correct
    Wrong
  • 4
    Iodine
    Correct
    Wrong
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Answer : 2. "White Phosphorus"

Q:

Which metal floats when put in water?

775 0

  • 1
    Calcium
    Correct
    Wrong
  • 2
    Nickel
    Correct
    Wrong
  • 3
    Magnesium
    Correct
    Wrong
  • 4
    Potassium
    Correct
    Wrong
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Answer : 1. "Calcium"

Q:

______fibre is used in making bullet proof vests.

768 0

  • 1
    Nylon-66
    Correct
    Wrong
  • 2
    Terylene
    Correct
    Wrong
  • 3
    Kevlar
    Correct
    Wrong
  • 4
    Lexan
    Correct
    Wrong
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Answer : 3. "Kevlar"

Q:

Which non-metal is liquid at room temperature?

765 0

  • 1
    mercury
    Correct
    Wrong
  • 2
    aluminum
    Correct
    Wrong
  • 3
    Bromine
    Correct
    Wrong
  • 4
    Copper
    Correct
    Wrong
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Answer : 3. "Bromine"

Q:

Substances that have a sour taste and which makes a solution of blue litmus red are called?

760 0

  • 1
    acid
    Correct
    Wrong
  • 2
    salts
    Correct
    Wrong
  • 3
    consumed
    Correct
    Wrong
  • 4
    Base
    Correct
    Wrong
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Answer : 1. "acid"

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