GASES MCQs | Everyday Science Past Papers MCQs

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Everyday Science Past Papers MCQs – Everyday Science MCQs

GASES MCQs

Heating element of an electric heater is made up of___________?

  1. Chromium
  2. Graphite
  3. Tungsten
  4. Nichrome

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Which Gas is used in the preparation of Soft drinks?

  1. Nitrogen
  2. Carbon dioxide
  3. Oxygen
  4. None

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Pitch is the black residue of:

  1. coal
  2. coal tar
  3. coke
  4. None

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For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________?

  1. Decrease
  2. Remain constant
  3. Increase
  4. All of these
  5. None of these

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why we should not sleep under tree at night:

  1. Carbon di oxide
  2. Oxygen
  3. Nitrogen
  4. Hydrogen

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Without boiling liquid state changes into gaseous state by the ___ process?

  1. condensation
  2. melting
  3. freezing
  4. evaporation

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For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will increase _________.

  1. High
  2. Low
  3. Constant
  4. All of these
  5. None of these

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ہائیڈروجن ایک ــــــــــــــــــــــــــــ ہے۔

  1. ٹھوس
  2. مائع
  3. گیس
  4. یہ سب کے سب
  5. ان میں سے کوئی نہیں

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A fan makes a hot noon to feel cool by

  1. Letting in air cool
  2. regulating the airflow
  3. blowing out hot air
  4. increasing the rate of evaporation

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Third most abundant element in the universe is:

  1. Hydrogen
  2. Helium
  3. Oxygen
  4. None

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Which gas used in cold drinks

  1. Carbon dioxide
  2. Oxygen
  3. Nitrogen
  4. None

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In the manufacture of banaspati ghee, the gas used is:

  1. Helium
  2. Hydrogen
  3. Oxygen
  4. None of these

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How much carbon dioxide can a tree remove annually from the air?

  1. 28 pounds
  2. 68 pounds
  3. 58 pounds
  4. 48 pounds

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Which is the rarest Isotope of Hydrogen:

  1. Protium
  2. Deuterium
  3. Tritium
  4. None

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Photosynthesis takes place faster in ?

  1. white light
  2. darkness
  3. red light
  4. yellow light

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Which poisonous gas is produced when coal is burnt with out enough air supply ?

  1. Ammonia
  2. Carbon monoxide
  3. Nitrogen
  4. None

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Natural Gas was discovered in Sui,Baluchistan in :

  1. 1951
  2. 1954
  3. 1952
  4. 1950

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Which of following gas is combustion

  1. Hydrogen
  2. Oxygen
  3. nitrogen
  4. None

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Minimum / lowest sound recorded in which medium:

  1. Air
  2. Water
  3. steel
  4. None

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Inert gases are ______?

  1. Noble gases
  2. Hydrogen
  3. Nitrogen
  4. None of the above

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Icy bodies around the Sun are:

  1. Comets
  2. Astride
  3. Plant
  4. None

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Atomic reactor fuel is ?

  1. Uranium
  2. Aluminum
  3. Chlorine
  4. None

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The process of measuring temperature is called :

  1. Thermometry
  2. Thermometer
  3. All
  4. none

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Freezing point of mercury is :

  1. -39C
  2. -99C
  3. -30C
  4. None

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What is the effect of global warming

  1. Oxygen
  2. Carbon dioxide
  3. nitrogen
  4. none

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Freezing point of water :

  1. 0 °C
  2. 2 °C
  3. 1 °C
  4. None

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Elements are classified into ___ classes?

  1. 8
  2. 4
  3. 3
  4. 2

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An instrument use to measure gas pressure is called

  1. Ammeter
  2. Galvanometer
  3. Barometer
  4. Manometer
  5. None

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Percentage of Oxygen in the air is :

  1. 20.94%
  2. 21.94%
  3. 22.94%
  4. 25.7%
  5. All

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which fuel produces least air pollution?

  1. CNG
  2. Petrol
  3. Diesel
  4. None

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if the pressure of given mass of a gas is doubled at the constant temperature what will happen to volume?

  1. Become doubled
  2. Remain same
  3. Become halved
  4. none

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Which nutrient is maximum given for raising the field crops?

  1. Nitrogen
  2. Calcium
  3. Potash
  4. None

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which chemical is used for purification of water?

  1. Chlorine
  2. Florine
  3. Iodine
  4. None

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Natural gas provided in the homes is :

  1. CH3
  2. MH4
  3. CH4
  4. None

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Hydrogen has ____ Neutrons?

  1. 1
  2. 2
  3. 3
  4. 8

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CFC used in air conditioners, if accidentally released in the air will damage the:

  1. Water
  2. Computer
  3. Air
  4. Ozone Layer

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Atomic number is usually presented by symbol:

  1. A
  2. N
  3. M
  4. Z

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The number of nitrogen atoms present in the head of chlorophyll molecule?

  1. One
  2. Two
  3. Three
  4. Four

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Which of following produces more severe burn:

  1. Sun
  2. Hot air
  3. Steam
  4. None

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On heating,solids:

  1. Expand
  2. Condense
  3. Shrink
  4. Cancel

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For respiration purpose deep sea diverts may use a mixture of gases most contain :

  1. Helium
  2. Nitrogen
  3. Oxygen
  4. Clorine

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If the pH value of a sewer is 7

  1. It is acidic
  2. It is alkaline
  3. It is neutral
  4. None of the above

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Atomic number of hydrogen is:

  1. 4
  2. 3
  3. 2
  4. 1
  5. Zero

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Atomic number of oxygen is:

  1. 5
  2. 8
  3. 11
  4. zero
  5. None of these

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Atomic number of nitrogen is ____?

  1. 5
  2. 6
  3. 7
  4. 8
  5. None of these

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The symbol of Hydrogen is

  1. H
  2. Hf
  3. HH
  4. Hs
  5. None

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Tiredness is felt on the top of mountains because of:

  1. High temperature
  2. Low temperature
  3. Low pressure outside the body
  4. High pressure outside the body
  5. None

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The liquid which is liquid at room temperature is :

  1. Lead
  2. Zinc
  3. Mercury
  4. Aluminum

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Laughing gas is ?

  1. Nitrous Oxide
  2. Oxygen
  3. Hydrogen
  4. None

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Most available form of solid fuel is :

  1. Coal
  2. Wood
  3. Petrol
  4. Lignite

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The inferred radiation by sun are strongly absorbed by:

  1. Carbon dioxide
  2. Water vapor
  3. Carbon dioxide and Water vapor
  4. Ozone

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Small liquid drops assume spherical shape because:

  1. Of adhesion
  2. Of the pressure from all sides
  3. Of the gravitational force
  4. The liquid tends to have minimum surface area dure to surface tension

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Jet fuel used in a jet engine is:

  1. Diesel oil
  2. Liquid paraffin
  3. Benzene
  4. Kerosene

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Carbon Dating is used for :

  1. Collecting carbon
  2. finding the age
  3. hardening the diamond
  4. melting steel

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