The percentage of nitrogen gas in the air is from Science Our Na

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which one of the following is not a product of petroleum?

  • CNG

  • Paraffin wax

  • Bitumen

  • Kerosene


2.

Which of the following is a greenhouse gas?

  • Nitrogen

  • Carbon dioxide

  • Argon

  • Oxygen


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3.

The percentage of nitrogen gas in the air is

  • 78

  • 21.5

  • 40

  • 3


A.

78


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4.

Momentum of a particle of mass m is p. Its Kinetic Energy will be

  • p2m

  • p2m

  • mp

  • p22m


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5.

Which of the following is not a constituent of petroleum?

  • Petrol

  • Coke

  • Paraffin wax

  • Lubricating oil


6.

The greenhouse effect which is causing an increase in the atmospheric temperature is mainly due to

  • nitrogen

  • sulphur

  • carbon dioxide

  • oxygen


7.

The gas which forms carboxy-hemoglobin in the blood, causing suffocation is

  • carbon monoxide

  • nitrogen

  • carbon dioxide

  • chlorofluorocarbon


8.

The gases present in atmosphere that cause greenhouse effect are

  • methane, water vapour, carbon dioxide

  • carbon dioxide, oxygen, nitrogen

  • carbon dioxide, sulphur dioxide, methane

  • nitrous oxide, oxygen, water vapour


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9.

Maximum quantity of carbon is present in

  • petrol

  • kerosene

  • lubricant oil

  • ligroin


10.

The steps required for the conversion of kitchen garbage into manure are given
below in a jumbled form.
A. Put the garbage in the pit.
B. Cover the bottom of the pit with sand.
C. Cover the pit loosely with grass or a gunny bag.
D. Add worms.
The correct sequence of these steps is

  • B, A, C, D

  • B, C, A, D

  • B, A, D, C

  • B, D, A, C


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