Chemistry Questions Practice Question and Answer

Q:

What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons? 

1379 0

  • 1
    2
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 2. "4 "

Q:

The maximum number of electrons that can be accommodated in M shell is:

1336 0

  • 1
    8
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    18
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 3. "18"

Q:

Potassium nitrate is used in

1300 0

  • 1
    medicine
    Correct
    Wrong
  • 2
    salt
    Correct
    Wrong
  • 3
    glass
    Correct
    Wrong
  • 4
    fertiliser
    Correct
    Wrong
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Answer : 4. "fertiliser"

Q:

Water gas is the mixture of 

1232 0

  • 1
    carbon dioxide and hydrogen
    Correct
    Wrong
  • 2
    carbon monoxide and hydrogen
    Correct
    Wrong
  • 3
    carbon dioxide and nitrogen
    Correct
    Wrong
  • 4
    carbon monoxide and nitrogen bear
    Correct
    Wrong
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Answer : 2. "carbon monoxide and hydrogen "

Q:

Atomic number of which of the following elements is greater than that of Copper?

1220 0

  • 1
    Zinc
    Correct
    Wrong
  • 2
    Manganese
    Correct
    Wrong
  • 3
    Iron
    Correct
    Wrong
  • 4
    Chromium
    Correct
    Wrong
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Answer : 1. "Zinc"

Q:

Gasohol is – 

1216 0

  • 1
    Any gas dissolved in alcohol
    Correct
    Wrong
  • 2
    Ethyl alcohol + Kerosene oil
    Correct
    Wrong
  • 3
    Ethyl alcohol + Petrol
    Correct
    Wrong
  • 4
    Natural Gas + Ethyl alcohol
    Correct
    Wrong
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Answer : 3. "Ethyl alcohol + Petrol "

Q:

The air is the example of:

1213 0

  • 1
    The solution of solid in the gas
    Correct
    Wrong
  • 2
    The solution of gas in the gas
    Correct
    Wrong
  • 3
    The solution of liquid in the gas
    Correct
    Wrong
  • 4
    The solution of liquid in the solid
    Correct
    Wrong
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Answer : 2. "The solution of gas in the gas"

Q:

If the pH value of a substance is lower than 7, it would be considered as–

1165 0

  • 1
    Neutral
    Correct
    Wrong
  • 2
    Base
    Correct
    Wrong
  • 3
    Acid
    Correct
    Wrong
  • 4
    Ion
    Correct
    Wrong
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Answer : 3. "Acid"

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