Chemistry Practice Question and Answer

Q:

Which of the following compound contains only Carbon and Hydrogen atoms in their formation?

677 0

  • 1
    Chloroform
    Correct
    Wrong
  • 2
    Teflon
    Correct
    Wrong
  • 3
    Ethanol
    Correct
    Wrong
  • 4
    Benzene
    Correct
    Wrong
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Answer : 4. "Benzene"

Q:

Gold is used to make jewelery?

674 0

  • 1
    22 carats
    Correct
    Wrong
  • 2
    24 carat
    Correct
    Wrong
  • 3
    16 carats
    Correct
    Wrong
  • 4
    23 carats
    Correct
    Wrong
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Answer : 1. "22 carats"

Q:

The alkaloid naturally found in coffee, cocoa and colanut is

670 0

  • 1
    Cocaine
    Correct
    Wrong
  • 2
    Morphine
    Correct
    Wrong
  • 3
    Tannin
    Correct
    Wrong
  • 4
    Caffeine
    Correct
    Wrong
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Answer : 4. "Caffeine"

Q:

Oiled paper is?

670 0

  • 1
    Translator
    Correct
    Wrong
  • 2
    opaque
    Correct
    Wrong
  • 3
    transparent
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 2. "opaque"

Q:

Which of the following are metals found in free state in the earth's crust?

669 0

  • 1
    Ag
    Correct
    Wrong
  • 2
    Mg
    Correct
    Wrong
  • 3
    Al
    Correct
    Wrong
  • 4
    Zn
    Correct
    Wrong
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Answer : 1. "Ag"

Q:

Lewis concept does explain the behaviour of __________

664 0

  • 1
    Bases
    Correct
    Wrong
  • 2
    Salts
    Correct
    Wrong
  • 3
    Protonic acids
    Correct
    Wrong
  • 4
    Amphoteric substances
    Correct
    Wrong
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Answer : 3. "Protonic acids"

Q:

During uniform motion of an object along a straight line, its ___________ remains constant with time.

659 0

  • 1
    acceleration
    Correct
    Wrong
  • 2
    velocity
    Correct
    Wrong
  • 3
    force
    Correct
    Wrong
  • 4
    deceleration
    Correct
    Wrong
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Answer : 2. "velocity "

Q:

How many carbon atoms are joined in buckminsterfullerene?

648 0

  • 1
    30
    Correct
    Wrong
  • 2
    90
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 3. "60"

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