-
question_answer1)
Which of the following outer electronic configuration represents argon [DPMT 1982; CPMT 1976; NCERT 1987;Kurukshetra CEE 1998]
A)
\[n{{s}^{2}}\] done
clear
B)
\[n{{s}^{2}}n{{p}^{6}}\] done
clear
C)
\[n{{s}^{2}}n{{p}^{5}}\] done
clear
D)
\[n{{s}^{2}}n{{p}^{4}}\] done
clear
View Solution play_arrow
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question_answer2)
Which mineral was used in isolation of radium [CPMT 1978, 81, 91]
A)
Lime stone done
clear
B)
Pitch blende done
clear
C)
Rutile done
clear
D)
Haematite done
clear
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question_answer3)
Which is the lightest gas
A)
Hydrogen done
clear
B)
Oxygen done
clear
C)
Helium done
clear
D)
Nitrogen done
clear
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question_answer4)
The valency of inert gases is
A)
5 done
clear
B)
1 done
clear
C)
0 done
clear
D)
None of these done
clear
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question_answer5)
Helium was discovered by
A)
Crooks done
clear
B)
Rutherford done
clear
C)
Frankland and Lockyer done
clear
D)
Dorn done
clear
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question_answer6)
The inert gases are [CPMT 1984]
A)
Polyatomic done
clear
B)
Triatomic done
clear
C)
Diatomic done
clear
D)
Monoatomic done
clear
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question_answer7)
The charcoal maintained at \[{{100}^{o}}C\] absorbs
A)
\[Ne\] and \[Kr\] done
clear
B)
\[He\] and \[Ar\] done
clear
C)
\[Ar,\] \[Kr,\] \[Xe\] done
clear
D)
\[He\] and \[Ne\] done
clear
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question_answer8)
Every inert gas atom
A)
Has a saturated outermost shell done
clear
B)
Has one electron in outermost shell done
clear
C)
Has eight electrons in outermost shell done
clear
D)
Has two electrons in outermost shell done
clear
View Solution play_arrow
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question_answer9)
Argon was discovered by [CPMT 1991]
A)
Rayleigh done
clear
B)
Frakland and Lockyer done
clear
C)
Jansen done
clear
D)
Ramsay done
clear
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question_answer10)
Deep sea divers used to respirate is a mixture of
A)
Oxygen and argon done
clear
B)
Oxygen and helium done
clear
C)
Oxygen and nitrogen done
clear
D)
Oxygen and hydrogen done
clear
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question_answer11)
The noble gas which forms maximum number of compounds is [NCERT 1976; BHU 1980; CPMT 1982, 91; AMU 1985; DPMT 1996; MP PMT 2001; Pb.CET 2003]
A)
\[Ar\] done
clear
B)
\[He\] done
clear
C)
\[Xe\] done
clear
D)
\[Ne\] done
clear
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question_answer12)
Which of the following gases exist more abundantly in nature than the others [BHU 1982; DPMT 1982,02; CPMT 1983, 89; EAMCET 1993; Manipal MEE 1995; MHCET 2003]
A)
Helium done
clear
B)
Neon done
clear
C)
Argon done
clear
D)
Krypton done
clear
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question_answer13)
Which of the following is monoatomic [NCERT 1976, 77; CPMT 1983, 86, 90]
A)
Nitrogen done
clear
B)
Fluorine done
clear
C)
Neon done
clear
D)
Oxygen done
clear
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question_answer14)
Nuclear fusion produces
A)
Argon done
clear
B)
Deuterium done
clear
C)
Helium done
clear
D)
Krypton done
clear
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question_answer15)
Among the fluorides below, the one which does not exist is [NCERT 1977; CPMT 1988]
A)
\[Xe{{F}_{4}}\] done
clear
B)
\[He{{F}_{4}}\] done
clear
C)
\[S{{F}_{4}}\] done
clear
D)
\[C{{F}_{4}}\] done
clear
View Solution play_arrow
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question_answer16)
The last orbit of argon would have electrons [CPMT 1971, 78]
A)
6 done
clear
B)
2 done
clear
C)
18 done
clear
D)
8 done
clear
View Solution play_arrow
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question_answer17)
The electronic configuration of neon is [CPMT 1974, 80, 81; DPMT 1982; MNR 1995]
A)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{2}}\] done
clear
B)
\[\] \[2{{s}^{2}}2{{p}^{6}}\] done
clear
C)
\[1{{s}^{2}},\] \[2{{s}^{2}}\] done
clear
D)
\[1{{s}^{2}}\] done
clear
View Solution play_arrow
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question_answer18)
The colour discharge tubes for advertisement mainly contain [CPMT 1980, 89; MP PET 2002]
A)
Argon done
clear
B)
Neon done
clear
C)
Helium done
clear
D)
Xenon done
clear
View Solution play_arrow
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question_answer19)
Least chemical activity is shown by [CPMT 1973, 79]
A)
Nitrogen done
clear
B)
Argon done
clear
C)
Methane done
clear
D)
Ammonia done
clear
View Solution play_arrow
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question_answer20)
Noble gases do not react with other elements because [CPMT 1981]
A)
They have completely paired up and stable electron shells done
clear
B)
The sizes of their atoms are very small done
clear
C)
Are not found in abundance done
clear
D)
Are monoatomic done
clear
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question_answer21)
Monazite is source of
A)
\[He\] done
clear
B)
\[Kr\] done
clear
C)
\[Ar\] done
clear
D)
\[Ne\] done
clear
View Solution play_arrow
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question_answer22)
Which of the following fluorides of Xenon is impossible [CPMT 1982; Kurukshetra CEE 1998;RPET 1999]
A)
\[Xe{{F}_{6}}\] done
clear
B)
\[Xe{{F}_{4}}\] done
clear
C)
\[Xe{{F}_{3}}\] done
clear
D)
\[Xe{{F}_{2}}\] done
clear
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question_answer23)
\[Xe{{F}_{2}}\] molecule is
A)
Square planer done
clear
B)
Trigonal bipyramidal done
clear
C)
Trigonal planer done
clear
D)
Linear done
clear
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question_answer24)
\[Xe{{F}_{4}}\] on partial hydrolysis produces [AFMC 1995]
A)
\[Xe{{F}_{2}}\] done
clear
B)
\[XeO{{F}_{2}}\] done
clear
C)
\[XeO{{F}_{4}}\] done
clear
D)
\[Xe{{O}_{3}}\] done
clear
View Solution play_arrow
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question_answer25)
In \[Xe{{F}_{2}}\] hybridisation of \[Xe\] is
A)
\[s{{p}^{2}}\] done
clear
B)
\[s{{p}^{3}}d\] done
clear
C)
\[s{{p}^{3}}\] done
clear
D)
\[s{{p}^{3}}{{d}^{2}}\] done
clear
View Solution play_arrow
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question_answer26)
Which one of the following noble gases is the least polarizable [AIIMS 1983; MP PET 1999; Pb. PMT 2001; JIPMER (Med.) 2002]
A)
\[Xe\] done
clear
B)
\[Ar\] done
clear
C)
\[Ne\] done
clear
D)
\[He\] done
clear
View Solution play_arrow
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question_answer27)
Which one of the following noble gases is not found in the atmosphere [MP PMT 1993]
A)
\[Rn\] done
clear
B)
\[Kr\] done
clear
C)
\[Ne\] done
clear
D)
\[Ar\] done
clear
View Solution play_arrow
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question_answer28)
Helium is added to the oxygen supply used by deep sea divers because [MP PMT 1993; MP PET 1997]
A)
It is less soluble in blood than nitrogen at high pressure done
clear
B)
It is lighter than nitrogen done
clear
C)
It is readily miscible with oxygen done
clear
D)
It is less poisonous than nitrogen done
clear
View Solution play_arrow
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question_answer29)
Which of the following statements is not correct for a noble gas [MP PET 1993]
A)
\[Ar\] is used in electric bulbs done
clear
B)
\[Kr\] is obtained during radioactive disintegration done
clear
C)
Half life of \[Rn\] is only 3.8 days done
clear
D)
\[He\] is used in producing very low temperature done
clear
View Solution play_arrow
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question_answer30)
Which one of the following configuration represents a noble gas [CPMT 1976, 83, 89; BHU 1982; Pb. CET 2000 NCERT 1979; IIT Screening 1993; EAMCET 1993]
A)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}\] done
clear
B)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{1}}\] done
clear
C)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}}\] done
clear
D)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}},\] \[4{{s}^{2}}\] done
clear
View Solution play_arrow
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question_answer31)
Which of the following has zero valency [DPMT 1985]
A)
Sodium done
clear
B)
Beryllium done
clear
C)
Aluminium done
clear
D)
Krypton done
clear
View Solution play_arrow
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question_answer32)
The forces acting between noble gas atoms are [NCERT 1989]
A)
Vander Waals forces done
clear
B)
Ion-dipole forces done
clear
C)
London dispersion forces done
clear
D)
Magnetic forces done
clear
View Solution play_arrow
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question_answer33)
Which of the following is the correct sequence of the noble gases in their group in the periodic table [Manipal MEE 1995]
A)
Ar, He, Kr, Ne, Rn, Xe done
clear
B)
He, Ar, Ne, Kr, Xe, Rn done
clear
C)
He, Ne, Ar, Kr, Xe, Rn done
clear
D)
He, Ne, Kr, Ar, Xe, Rn done
clear
View Solution play_arrow
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question_answer34)
Which of the following represent nobel gas configuration [BHU 1995]
A)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\] \[4{{s}^{2}}4{{p}^{6}}4{{d}^{10}},\] \[5{{s}^{2}}5{{p}^{6}}\] done
clear
B)
\[1{{s}^{2}},\]\[2{{s}^{2}}2{{p}^{6}},\]\[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\] \[4{{s}^{2}}4{{p}^{6}}4{{d}^{10}}4{{f}^{14}}\], \[5{{s}^{2}}5{{p}^{6}}5{{d}^{1}},6{{s}^{2}}\] done
clear
C)
\[1{{s}^{2}},\] \[2{{s}^{2}}s{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\] \[4{{s}^{2}}4{{p}^{6}}4{{d}^{10}},\] \[5{{s}^{2}}5{{p}^{6}}5{{d}^{1}},\] \[6{{s}^{2}}\] done
clear
D)
\[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\] \[4{{s}^{2}}4{{p}^{6}}4{{d}^{10}}\] done
clear
View Solution play_arrow
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question_answer35)
\[Xe{{F}_{6}}\] on hydrolysis gives [MP PET 2000; Pb. PMT 2000; DCE 2002]
A)
\[Xe{{O}_{3}}\] done
clear
B)
\[XeO\] done
clear
C)
\[Xe{{O}_{2}}\] done
clear
D)
\[Xe\] done
clear
View Solution play_arrow
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question_answer36)
The correct order of solubility in water for \[He,\,Ne,\,Ar,\,Kr,\,Xe,\,\]is [AIIMS 2002]
A)
\[He>Ne>Ar>Kr>Xe\] done
clear
B)
\[Ne>Ar>Kr>He>Xe\] done
clear
C)
\[Xe>Kr>Ar>Ne>He\] done
clear
D)
\[Ar>Ne>He>Kr>Xe\] done
clear
View Solution play_arrow
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question_answer37)
In \[Xe{{F}_{2}},\,Xe{{F}_{4}},\,\]\[Xe{{F}_{6}}\] the number of lone pairs on Xe is respectively [AIEEE 2002]
A)
2, 3, 1 done
clear
B)
1, 2, 3 done
clear
C)
4, 1, 2 done
clear
D)
3, 2, 1 done
clear
View Solution play_arrow
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question_answer38)
Noble gases are group of elements which exhibit very [Kerala (Med.) 2002]
A)
High chemical activity done
clear
B)
Low chemical activity done
clear
C)
Minimum electronegativity done
clear
D)
Much paramagnetic properties done
clear
View Solution play_arrow
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question_answer39)
Which noble gas is most soluble in water [CPMT 2002]
A)
He done
clear
B)
Ar done
clear
C)
Ne done
clear
D)
Xe done
clear
View Solution play_arrow
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question_answer40)
Gradual addition of electronic shells in the noble gases causes a decrease in their [MP PET 1997]
A)
Ionization energy done
clear
B)
Atomic radius done
clear
C)
Boiling point done
clear
D)
Density done
clear
View Solution play_arrow
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question_answer41)
Which of the following noble gas does not have an octet of electrons in its outermost shell [MP PET 1996]
A)
Neon done
clear
B)
Radon done
clear
C)
Argon done
clear
D)
Helium done
clear
View Solution play_arrow
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question_answer42)
The low chemical reactivity of the rare gases can be attributed to their [Pune CET 1998]
A)
Being non-metals done
clear
B)
Having high ionization energies done
clear
C)
Being gases done
clear
D)
Found in nature in small quantities done
clear
View Solution play_arrow
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question_answer43)
Percentage of \[Ar\] in air is about [CPMT 1989]
A)
1% done
clear
B)
2% done
clear
C)
3% done
clear
D)
4% done
clear
View Solution play_arrow
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question_answer44)
Which of the following is not obtained by direct reaction of constituent elements [MP PET 1994]
A)
\[Xe{{F}_{2}}\] done
clear
B)
\[Xe{{F}_{4}}\] done
clear
C)
\[Xe{{O}_{3}}\] done
clear
D)
\[Xe{{F}_{6}}\] done
clear
View Solution play_arrow
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question_answer45)
Fluorine forms chemical compounds with [MP PMT 1994]
A)
\[He\] done
clear
B)
\[Ne\] done
clear
C)
\[Ar\] done
clear
D)
\[Xe\] done
clear
View Solution play_arrow
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question_answer46)
Which of the following has \[s{{p}^{3}}\] hybridisation [DCE 2001]
A)
\[Xe{{O}_{3}}\] done
clear
B)
\[BC{{l}_{3}}\] done
clear
C)
\[Xe{{F}_{4}}\] done
clear
D)
\[BB{{r}_{3}}\] done
clear
View Solution play_arrow
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question_answer47)
Which element out of \[He,\] \[Ar,\] \[Kr,\] and \[Xe\] forms least number of compounds [MP PMT 1995]
A)
\[He\] done
clear
B)
\[Ar\] done
clear
C)
\[Kr\] done
clear
D)
\[Xe\] done
clear
View Solution play_arrow
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question_answer48)
Which of the following exhibits the weakest intermolecular forces [KCET (Med.) 2001]
A)
He done
clear
B)
HCl done
clear
C)
\[N{{H}_{3}}\] done
clear
D)
\[{{H}_{2}}O\] done
clear
View Solution play_arrow
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question_answer49)
Which of the following are formed by Xenon [Roorkee 2000]
A)
\[Xe{{F}_{3}}\] done
clear
B)
\[Xe{{F}_{4}}\] done
clear
C)
\[Xe{{F}_{5}}\] done
clear
D)
\[Xe{{F}_{6}}\] done
clear
View Solution play_arrow
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question_answer50)
Among the following molecule (i) \[Xe{{O}_{3}}\] (ii) \[XeO{{F}_{4}}\] (iii) \[Xe{{F}_{6}}\] Those having same number of lone pairs on Xe are [AIIMS 2005]
A)
(i) and (ii) only done
clear
B)
(i) and (iii) only done
clear
C)
(ii) and (iii) only done
clear
D)
(i),(ii) and (iii) done
clear
View Solution play_arrow
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question_answer51)
Who among the following first prepared a stable compound of noble gas [MP PET 1999]
A)
Rutherford done
clear
B)
Rayleigh done
clear
C)
Ramsay done
clear
D)
Neil Bartlett done
clear
View Solution play_arrow
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question_answer52)
The last member of inert gas elements is [MP PMT 1999]
A)
Helium done
clear
B)
Neon done
clear
C)
Argon done
clear
D)
Radon done
clear
View Solution play_arrow
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question_answer53)
Which of the following gas is/are called rare gas [CPMT 2000; Pb. CET 2002]
A)
Ne done
clear
B)
He done
clear
C)
Kr done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer54)
Which one of the following statements regarding helium is incorrect [AIEEE 2004]
A)
It is used to produce and sustain powerful superconducting magnets done
clear
B)
It is used as a cryogenic agent for carrying out experiments at low temperatures done
clear
C)
It is used to fill gas balloons instead of hydrogen because it is lighter and non-inflammable done
clear
D)
It is used in gas-cooled nuclear reactors done
clear
View Solution play_arrow
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question_answer55)
Which of the following inert gas liquifies easily [Pb. CET 2002]
A)
Kr done
clear
B)
He done
clear
C)
Ne done
clear
D)
Ar done
clear
View Solution play_arrow
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question_answer56)
The oxidation number of xenon in \[XeO{{F}_{2}}\] is [J & K 2005]
A)
Zero done
clear
B)
2 done
clear
C)
4 done
clear
D)
3 done
clear
View Solution play_arrow
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question_answer57)
Which inert gas having highest boiling point [BCECE 2005]
A)
Xe done
clear
B)
Ar done
clear
C)
Kr done
clear
D)
He done
clear
View Solution play_arrow
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question_answer58)
Which of the following is an inert gas [AFMC 2005]
A)
\[{{H}_{2}}\] done
clear
B)
\[{{O}_{2}}\] done
clear
C)
\[{{N}_{2}}\] done
clear
D)
Argon done
clear
View Solution play_arrow
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question_answer59)
Which of the following is most polarised [DPMT 2005]
A)
\[Kr\] done
clear
B)
\[He\] done
clear
C)
\[Ar\] done
clear
D)
\[Xe\] done
clear
View Solution play_arrow
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question_answer60)
Which of the following is planar [J & K 2005]
A)
\[Xe{{F}_{2}}\] done
clear
B)
\[Xe{{O}_{3}}F\] done
clear
C)
\[Xe{{O}_{2}}{{F}_{2}}\] done
clear
D)
\[Xe{{F}_{4}}\] done
clear
View Solution play_arrow