JEE Questions for Chemistry Class 12 P Block Elements Quiz 18 - MCQExams.com

Which of following outer electronic configuration represents Ar?
  • ns2
  • ns2 np6
  • ns2 np5
  • ns2 np4
Which mineral was used in isolation of radium?
  • Lime stone
  • Pitch blende
  • Rectile
  • Haematite
Molecules of noble gas do not posses vibrational energy bec. Noble gas is
  • Monoatomic
  • Chemically inert
  • Complete filled shells
  • Is diatomic
Argon was discovered by
  • Ramsay
  • Rayleigh
  • Frankland & Lockyer
  • Jansen
The colour discharge tubes for advertisement mainly contain
  • Argon
  • Neon
  • Helium
  • Xenon
Least chemical activity is shown by
  • Nitrogen
  • Argon
  • Methane
  • Xenon
Noble gases do not react with other elements because
  • They have completely paired up & stable e – configuration
  • Their size is very small
  • Are monoatomic
  • None of these
Monazite is source of
  • He
  • Kr
  • Ar
  • Ne
He is added to oxygen supply used by deep sea divers because
  • It's less soluble in blood than Nitrogen at high pressure
  • It is Lighter than Nitrogen
  • It is readily miscible in oxygen
  • It is less poisionous than Nitrogen
Which of following is not correct for noblegas?
  • Ar is used in electric bulbs
  • Kr is obtained during radioactive disintegration
  • Half life of Rn is 3.8 days
  • He is used to produce Low temp
Which of following represents noble gas configuration

  • Chemistry-Class 12 p Block Elements-2933.png
  • 2)
    Chemistry-Class 12 p Block Elements-2934.png

  • Chemistry-Class 12 p Block Elements-2935.png

  • Chemistry-Class 12 p Block Elements-2936.png
Which of following has zero valency
  • Sodium
  • Beryllium
  • Aluminium
  • Krypton
Which of following is correct sequence of noble gas in their group ?
  • Ar, He, Kr , Ne , Xe, Rn
  • He, Ar, Ne, Kr, Xe, Rn
  • He, Ne, Ar, Kr, Xe, Rn
  • He, Ne, Kr, Ar, Xe, Rn
Which of following is noble gas configuration?

  • Chemistry-Class 12 p Block Elements-2937.png
  • 2)
    Chemistry-Class 12 p Block Elements-2938.png

  • Chemistry-Class 12 p Block Elements-2939.png

  • Chemistry-Class 12 p Block Elements-2940.png
Which of following noble gas does not have octate of e– in outer most shell.
  • Ne
  • Rn
  • Ar
  • He
Low chemical reactivity of rate gases can be attributed to their
  • Being nonmetal
  • Having High ioni cation energies
  • Being gases
  • Found in nature in small quantities
% of Ar in air is ;
  • 1%
  • 2%
  • 3%
  • 4%
F. forms chemical compound with
  • He
  • Ne
  • Ar
  • Xe
Per Xenate ion is

  • Chemistry-Class 12 p Block Elements-2941.png
  • 2)
    Chemistry-Class 12 p Block Elements-2942.png

  • Chemistry-Class 12 p Block Elements-2943.png
  • Xe
Last member of inert gas element is
  • Ne
  • He
  • Ar
  • Rn
Which of following is inert gas
  • H2
  • O2
  • N2
  • Argon
Which inert gas show abnormal behavior on liquefaction
  • Xe
  • He
  • Ar
  • Kr
Inert gas producing max. number of compounds
  • He & Ne
  • Ar & Ne
  • Kr & Ne
  • Ar & Xe
Helium was discovered by
  • Crooks
  • Rutherford
  • Frankland & Lockyer
  • Dorn
XeF4 and XeF4 are expected to be
  • Oxidising
  • Reducing
  • Un reactive
  • Strongly basic
Noble gas forms max. No. of compounds is
  • Ar
  • He
  • Xe
  • Ne
Nuclear Fusion Produces
  • Ar
  • Duterium
  • He
  • Krypton
Among fluorides, one that does not exists is
  • XeF4
  • HeF4
  • SF4
  • CF4
Last orbit of argon would have ___ e–
  • 6
  • 12
  • 18
  • 8
Electronic configuration of neon is

  • Chemistry-Class 12 p Block Elements-2946.png
  • 2)
    Chemistry-Class 12 p Block Elements-2947.png

  • Chemistry-Class 12 p Block Elements-2948.png

  • Chemistry-Class 12 p Block Elements-2949.png
Which of following noble gas is least polarizable
  • Xe
  • Ar
  • Ne
  • He
XeF6 on hydrolysis gives
  • XeO3
  • XeO
  • XeO2
  • Xe

Chemistry-Class 12 p Block Elements-2952.png

  • Chemistry-Class 12 p Block Elements-2953.png
  • 2)
    Chemistry-Class 12 p Block Elements-2954.png

  • Chemistry-Class 12 p Block Elements-2955.png

  • Chemistry-Class 12 p Block Elements-2956.png
Which of the following bonds has the highest energy?
  • Se ‒ Se
  • Te ‒ Te
  • S ‒ S
  • O ‒ O

Chemistry-Class 12 p Block Elements-2958.png
  • The ionization enthalpy of N2 gas is higher than that of O2 gas
  • The ionization enthalpy of N2 gas is lower than that of O2 gas
  • The ionization enthalpy of N2 gas is higher than that of N atom
  • None of these
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