Inert Gases MCQs [Chemistry]

Set of Important MCQs on the Chemistry of Inert Gases in inorganic chemistry for the preparation of tests.

What kind of gases are Zero group elements?

  1. Noble gases
  2. Rare gases
  3. Inert gases
  4. All of A, B, and C

Question’s Answer:All of A, B, and C


Which of the mentioned is helpful and used in radiotherapy?

  1. Kr
  2. Xe
  3. Rn
  4. He

Question’s Answer:Rn


Which one of the following is not true?

  1. Ar is helpful and used in electric bulbs
  2. Kr is obtained during radioactive decay
  3. Boiling point of He is lowest among all noble gases
  4. Xe forms XeOF4

Question’s Answer: Kr is obtained during radioactive decay


Xenon reacts best with

  1. The most electronegative elements
  2. The most electropositive elements
  3. The hydrogen halides
  4. Non-metals

Question’s Answer: The most electronegative elements


The noble gases are found in the atmosphere to the extent of about some percent by volume

  1. 2.4%
  2. 3.5%
  3. 1.0%
  4. 2.0%

Question’s Answer:1.0%


________ are the inert gases Ar, Kr and Xe form solid compounds with certain organic molecules under pressure.

  1. Clathrates
  2. Hydrates
  3. Halides
  4. All of A, B, and C

Question’s Answer: Clathrates


Xenon diflouride is obtained by irradiating a mixture of xenon and fluorine with light from a high pressure

  1. Xenon arc
  2. Tungeston arc
  3. Mercury arc
  4. None of A, B, and C

Question’s Answer: Mercury arc


XeF, is obtained, when a mixture of Xenon and fluorine in the ratio is heated in a nickel vessel at 400°C

  1. 5:1
  2. 2:4
  3. 1:30
  4. 1:5

Question’s Answer:5:1


Which is one of the best fluorinating agent?

  1. XeF6
  2. XeF4
  3. XeF2
  4. None of A, B, and C

Question’s Answer:XeF6


Which of the mentioned noble gas is helpful and used in

  1. Xenon
  2. Helium
  3. Radon
  4. Krypton

Question’s Answer: Krypton


What is the geometry of XeF2?

  1. Linear
  2. Square planar
  3. Triangular planar
  4. Trigonal bipyramidal

Question’s Answer: Linear


The states of hybridization of Xe in XeF4 and XeF6 are ______ , _______ .

  1. sp³d³, sp³d2
  2. sp3d2, sp³d2
  3. sp³d³, sp³d2
  4. None of A, B, and C

Question’s Answer: sp3d2, sp³d2


Zero group of the periodic table consists of how many elements?

  1. Four elements
  2. Five elements.
  3. Eight elements
  4. Six elements

Question’s Answer: Six elements


Argon is helpful and used in filling of

  1. Fluorescent tubes
  2. Luminous tube
  3. Discharge tubes
  4. None of A, B, and C

Question’s Answer: Fluorescent tubes


Which of the mentioned noble gas is helpful and used in Geiger counter to detect radioactivity?

  1. Ar
  2. Ne
  3. He
  4. Kr

Question’s Answer: Ar


Which of the mentioned noble gas is helpful and used TV sets and sound movies to give ready response to electrical potential?

  1. He
  2. Kr
  3. Ar
  4. Ne

Question’s Answer: Ne


Helium is helpful and used for

  1. Pressuring agent in rockets
  2. Filling electrical transformer
  3. The preservation of food
  4. All of A, B, and C

Question’s Answer: All of A, B, and C


For the respiration of sea divers mixture is helpful and used

  1. Kr & O₂
  2. Ar & O₂
  3. Ne & O₂
  4. He & O₂

Question’s Answer: He & O₂


Which one of the following noble gases is most abundant in atmosphere?

  1. Ar
  2. Ne
  3. He
  4. Xe

Question’s Answer: Ar


Which one of the following noble gas is obtained by radioactive disintegration?

  1. Rn
  2. Br
  3. Kr
  4. Xe

Question’s Answer: Rn


Which of the mentioned statements is not true about noble gases?

  1. Their ionization energies are very high
  2. Their electron affinities are nearly zero
  3. They do not form any chemical compounds
  4. They are not easily liquefied

Question’s Answer: They do not form any chemical compounds


What is the Helium contents in the atmosphere by volume?

  1. 0.0005%
  2. 0.0020%
  3. 0.0001%
  4. 0.00002%

Question’s Answer:0.0005%


Which noble gas does not obey octet rule?

  1. Rn
  2. He
  3. Kr
  4. Xe

Question’s Answer: He


______ are the inert gases Ar. Kr and Xe form compounds with water at low temperature and high pressure.

  1. Halides
  2. Clathrates
  3. Hydrates
  4. All of A, B, and C

Question’s Answer: Hydrates


Compounds formed when noble gases get entrapped in the cavities of crystal lattices of certain organic and inorganic compounds are called

  1. Clathrates
  2. Hydrates
  3. interstitial compounds
  4. Picrate’s

Question’s Answer: Clathrates


The noble gas helpful and used for treatment of cancer

  1. Helium
  2. Argon
  3. Krypton
  4. Radon

Question’s Answer: Radon


Helium-oxygen mixture is helpful and used by deep sea divers in preference to nitrogen-oxygen mixture, because

  1. Helium is much less soluble in blood than nitrogen
  2. Nitrogen is much less soluble in blood than helium
  3. Due to high pressure deep under the sea, nitrogen and oxygen react to give poisonous nitric oxide
  4. Nitrogen is highly soluble in water

Question’s Answer: Helium is much less soluble in blood than nitrogen


Helium is helpful and used in weather balloons and airships instead of H2, because it is

  1. Incombustible
  2. Lighter than hydrogen
  3. More abundant than hydrogen
  4. Radioactive

Question’s Answer: Incombustible


What is the noble gas which was discovered first in the sun and then on the earth?

  1. Ne
  2. He
  3. Ar
  4. Xe

Question’s Answer: He


Xe reacts directly with which of the following?

  1. F2
  2. Cl2
  3. O2
  4. Br2

Question’s Answer: F2


Which of the mentioned is not known?

  1. KrF6
  2. XeF6
  3. XeO3
  4. KrF2

Question’s Answer: KrF6


Helides are compounds of which noble gas?

  1. Ne
  2. Xe
  3. Kr
  4. He

Question’s Answer: He


Which of the mentioned noble gas is more reactive?

  1. Kr
  2. Xe
  3. Kr
  4. Rn

Question’s Answer: Rn


In XeF2 molecules, Xe atom undergoes hybridization

  1. sp3d
  2. sp2
  3. sp3
  4. spd

Question’s Answer:sp3d


Which of the mentioned minerals contain traces of He and Ne gases?

  1. Monazite
  2. Bitchblende.
  3. Cleveite
  4. None of A, B, and C

Question’s Answer:None of A, B, and C


Which of the mentioned noble gas is helpful and used in filling luminous tubes?

  1. Krypton
  2. Xenon
  3. Radon
  4. Helium

Question’s Answer: Krypton


The ‘shape’ of molecule, XeF6 is

  1. Distorted octahedral
  2. Regular octahedral
  3. Pentagonal bipyramidal
  4. Square planar

Question’s Answer: Distorted octahedral


Which type of hybridization of Xe is involved in XeOF, molecule?

  1. sp³
  2. sp³d2
  3. sp³d
  4. sp³d³

Question’s Answer: sp³d2


Select the false statement for XeF4.

  1. It has octahedral structure (or geometry)
  2. It is helpful and used as fluorinating agent
  3. XeF, disproportionates violently with water
  4. It oxidizes I to 12.

Question’s Answer: It has octahedral structure (or geometry)


Noble gases are helpful and used in discharge tubes to give different colours. Reddish-orange glow is due to

  1. Ne
  2. Ar
  3. Xe
  4. Kr

Question’s Answer: Ne

More Inorganic Chemistry MCQs

  1. Chemical Bonding MCQs
  2. Acids and Bases in inorganic chemistry MCQs
  3. Boron And Aluminum MCQs
  4. Carbon and Silicon MCQs
  5. Hydrogen, Alkali, and Alkaline Earth Metals MCQs
  6. D-Block Elements MCQs [Chemistry]
  7. F-Block Elements MCQs
  8. Halogens MCQs
  9. Inert Gases MCQs
  10. Nitrogen and Phosphorus MCQs
  11. Oxygen and Sulphur MCQs
  12. Experimental Inorganic Chemistry MCQs
  13. Periodic Classification Of Elements And Periodicity Of Properties MCQs
  14. CHEMISTRY MCQs From all subjects of  Chemistry

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