Chemistry Practice Question and Answer

Q:

Which of the following has low density and low melting point?

1207 0

  • 1
    Na
    Correct
    Wrong
  • 2
    Fe
    Correct
    Wrong
  • 3
    Cu
    Correct
    Wrong
  • 4
    Au
    Correct
    Wrong
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Answer : 1. "Na"

Q:

Halogens are belonging to:

1186 0

  • 1
    Group17
    Correct
    Wrong
  • 2
    Group 8
    Correct
    Wrong
  • 3
    Group 18
    Correct
    Wrong
  • 4
    Group 7
    Correct
    Wrong
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Answer : 1. "Group17 "

Q:

The brand name Teflon represents which polymer?

1180 0

  • 1
    Polystyrene
    Correct
    Wrong
  • 2
    Polypropylene
    Correct
    Wrong
  • 3
    Polytetrafluoroethylene
    Correct
    Wrong
  • 4
    Polyethylene terephthalate
    Correct
    Wrong
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Answer : 3. "Polytetrafluoroethylene"

Q:

NaHCO3 is chemical formula for ___________.

1170 0

  • 1
    Borax
    Correct
    Wrong
  • 2
    Vinegar
    Correct
    Wrong
  • 3
    Lime
    Correct
    Wrong
  • 4
    Baking soda
    Correct
    Wrong
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Answer : 4. "Baking soda"

Q:

In which of the following classifications are the elements arranged in the order of their increasing atomic number?

1169 0

  • 1
    The Modern Periodic Table
    Correct
    Wrong
  • 2
    Mendeleev's Periodic Table/
    Correct
    Wrong
  • 3
    Newland's Law of Octaves
    Correct
    Wrong
  • 4
    Dobereiner's Triads
    Correct
    Wrong
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Answer : 1. "The Modern Periodic Table "

Q:

Solutions having the same osmotic pressure at a given temperature are called_____.

1160 0

  • 1
    hypertonic solution
    Correct
    Wrong
  • 2
    hypotonic solution
    Correct
    Wrong
  • 3
    colloidal solution
    Correct
    Wrong
  • 4
    Isotonic solution
    Correct
    Wrong
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Answer : 4. "Isotonic solution"

Q:

The common name of dichlorodifluoromethane is _____.

1157 0

  • 1
    gypsum
    Correct
    Wrong
  • 2
    borax
    Correct
    Wrong
  • 3
    galena
    Correct
    Wrong
  • 4
    Freon
    Correct
    Wrong
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Answer : 4. "Freon"

Q:

Which of the following is a Lewis base?

1154 0

  • 1
    Ammonia
    Correct
    Wrong
  • 2
    Magnesium chloride
    Correct
    Wrong
  • 3
    Aluminum chloride
    Correct
    Wrong
  • 4
    Sodium ion
    Correct
    Wrong
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Answer : 1. "Ammonia"

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