JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank

done Topic Test - Chemical Bonding Total Questions - 35

• question_answer1)
  The correct increasing bond angles order is
  A)
  \[B{{F}_{3}}<N{{F}_{3}}<P{{F}_{3}}<Cl{{F}_{3}}\] done clear
  B)
  \[Cl{{F}_{3}}<P{{F}_{3}}<N{{F}_{3}}<B{{F}_{3}}\] done clear
  C)
  \[B{{F}_{3}}=N{{F}_{3}}<P{{F}_{3}}<Cl{{F}_{3}}\] done clear
  D)
  \[B{{F}_{3}}<N{{F}_{3}}<P{{F}_{3}}<Cl{{F}_{3}}\] done clear
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• question_answer2)
  Arrange the following in decreasing order of their bond length, \[{{O}_{2}},{{O}_{2}}^{+},{{O}_{2}}^{-}\] and \[O_{2}^{2-}\]
  A)
  \[O_{2}^{2-}<O_{2}^{-}<{{O}_{2}}+O_{2}^{+}\] done clear
  B)
  \[{{O}_{2}}<O_{2}^{2-}<O_{2}^{-}<O_{2}^{+}\] done clear
  C)
  \[O_{2}^{+}<O_{2}^{-}<O_{2}^{2-}<{{O}_{2}}\] done clear
  D)
  \[O_{2}^{+}<{{O}_{2}}<O_{2}^{-}<O_{2}^{2-}\] done clear
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• question_answer3)
  The hybridization of atomic orbital's of nitrogen in \[NO_{2}^{+},NO_{2}^{-}\] and \[NH_{4}^{+}\]are
  A)
  \[s{{p}^{2}},\text{ }s{{p}^{3}}\] and \[s{{p}^{2}}\] respectively done clear
  B)
  \[sp,\text{ }s{{p}^{2}}\] and \[s{{p}^{3}}\] respectively done clear
  C)
  \[s{{p}^{2}},\text{ }sp\] and \[s{{p}^{3}}\] respectively done clear
  D)
  \[s{{p}^{2}},\text{ }s{{p}^{3}}\] and sp respectively done clear
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• question_answer4)
  Which of the following has been arranged in order of increasing covalent character?
  A)
  \[KCl<CaC{{l}_{2}}<AlC{{l}_{3}}<SnC{{l}_{4}}\] done clear
  B)
  \[SnC{{l}_{4}}<AlC{{l}_{3}}<CaC{{l}_{2}}<KCl\] done clear
  C)
  \[AlC{{l}_{3}}<CaC{{l}_{2}}<KCl<SnC{{l}_{4}}\] done clear
  D)
  \[CaC{{l}_{2}}<SnC{{l}_{4}}<KCl<AlC{{l}_{3}}\] done clear
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• question_answer5)
  In \[I{{F}_{3}}\] the bond angle of F - I - F  is
  A)
  equal to \[{{90}^{o}}\] done clear
  B)
  less than \[{{90}^{o}}\] done clear
  C)
  greater than \[{{90}^{o}}\] done clear
  D)
  equal to \[{{90}^{o}}\] done clear
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• question_answer6)
  Hydrogen of 'N' in \[N(Si{{H}_{3}})\] is
  A)
  \[s{{p}^{2}}\]          done clear
  B)
  \[s{{p}^{3}}\] done clear
  C)
  sp         done clear
  D)
  Nis unhybridised done clear
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• question_answer7)
  Among the following species identify the isostructural pairs: \[N{{F}_{3}},NO_{3}^{-},B{{F}_{3}}{{H}_{3}}{{O}^{+}},H{{N}_{3}}\]
  A)
  \[[N{{F}_{3}},NO_{3}^{-}\,]\] and \[[B{{F}_{3}},\,\,{{H}_{3}}{{O}^{+}}]\] done clear
  B)
  \[[N{{F}_{3}},H{{N}_{3}}]\] and \[[N{{O}_{3}}^{-},B{{F}_{3}}]\] done clear
  C)
  \[[N{{F}_{3}},{{H}_{3}}{{O}^{+}}]\] and \[[N{{O}_{3}}^{-},B{{F}_{3}}]\] done clear
  D)
  \[[N{{F}_{3}},{{H}_{3}}{{O}^{+}}]\] and \[[H{{N}_{3}},B{{F}_{3}}]\] done clear
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• question_answer8)
  Which one of the following arrangements of molecules is correct on the basis of their dipole moments?
  A)
  \[B{{F}_{3}}>N{{H}_{3}}>N{{F}_{3}}\] done clear
  B)
  \[B{{F}_{3}}>N{{F}_{3}}>N{{H}_{3}}\] done clear
  C)
  \[N{{H}_{3}}>B{{F}_{3}}>N{{F}_{3}}\] done clear
  D)
  \[N{{H}_{3}}>N{{F}_{3}}>B{{F}_{3}}\] done clear
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• question_answer9)
  Among \[K{{O}_{2}},AlO_{2}^{-},Ba{{O}_{2}}\] and \[NO_{2}^{+}\] unpaired electron is present in
  A)
  \[NO_{2}^{+}\] and \[Ba{{O}_{2}}\] done clear
  B)
  \[K{{O}_{2}}\]and \[AlO_{2}^{-}\] done clear
  C)
  \[K{{O}_{2}}\] only done clear
  D)
  \[Ba{{O}_{2}}\] only done clear
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• question_answer10)
  Correctly match is:
  A)
  \[{{d}_{{{x}^{2}}-{{y}^{2}}}}\]atomic orbital - One nodal plane done clear
  B)
  \[{{p}_{y}}\] atomic orbital - Two nodal planes done clear
  C)
  \[{{\sigma }_{{{p}_{x}}}}\] molecular orbital - \[\Psi \](gerade) done clear
  D)
  \[\pi _{{{p}_{y}}}^{*}\] molecularorbital - \[\Psi \](ungerade) done clear
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• question_answer11)
  Choose the correct order of bond angle of the following
  A)
  x > z > y done clear
  B)
  x > y > z                done clear
  C)
  z > y > x done clear
  D)
  y > x > z done clear
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• question_answer12)
  Which of the following is not formed?
  A)
  \[BeF_{4}^{2-}\] done clear
  B)
  \[BeF_{3}^{-}\] done clear
  C)
  \[BF_{4}^{-}\] done clear
  D)
  \[BF_{6}^{3-}\] done clear
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• question_answer13)
  Which one shows maximum hydrogen bonding?
  A)
  \[{{H}_{2}}O\] done clear
  B)
  \[{{H}_{2}}Se\] done clear
  C)
  \[{{H}_{2}}S\] done clear
  D)
  HF done clear
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• question_answer14)
  Number of lone pairs around phosphorus in \[PC{{l}_{5}},PCl_{4}^{+}\] and \[PCl_{6}^{-}\] are respectively
  A)
  0, 1, 2 done clear
  B)
  0, 0, 0 done clear
  C)
  1, 2, 3 done clear
  D)
  0, 2, 1 done clear
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• question_answer15)
  During steam distillation of a mixture of o-nitrophenol and p-nitrophenol
  A)
  vapours of o-nitrophenol are carried by steam because of its lower boiling point due to chelation. done clear
  B)
  vapours of o-nitrophenols are carried by steam because of its lower boiling point and solubility in steam. done clear
  C)
  vapours of o-nitrophenol are carried by steam because its boiling point is reduced by steam. done clear
  D)
  vapours of p-nitrophenol are carried by steam because of its lower boiling point. done clear
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• question_answer16)
  The bond between carbon atom (1) and carbon atom (2) in compound \[N\equiv \overset{1}{\mathop{C}}\,-\overset{2}{\mathop{C}}\,H=C{{H}_{2}}\] involves the hybrid as
  A)
  \[s{{p}^{2}}\] and \[s{{p}^{2}}\] done clear
  B)
  \[s{{p}^{3}}\] and sp done clear
  C)
  sp and \[s{{p}^{2}}\] done clear
  D)
  sp and sp done clear
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• question_answer17)
  Which of the following structure of \[Cl{{F}_{3}}\] is most stable?
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  All the three have equivalent stability done clear
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• question_answer18)
  Which compound contains both ionic and covalent bonds?
  A)
  Sodium nitrate  done clear
  B)
  Ammonia done clear
  C)
  Methane                       done clear
  D)
  Potassium chloride done clear
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• question_answer19)
  Which of following statement is true?
  A)
  Absolutely pure water does not contain any ions done clear
  B)
  London forces is directly proportional to more number of loosely held electron done clear
  C)
  Allene is polar due to its non-planar structure done clear
  D)
  \[C{{H}_{3}}OC{{H}_{3}}\] is less volatile than \[{{C}_{2}}{{H}_{5}}OH\] due to higher molecular weight. done clear
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• question_answer20)
  Correct order of bond energy is
  A)
  \[{{N}_{2}}>N_{2}^{+}>N_{2}^{-}>N_{2}^{2-}\] done clear
  B)
  \[N_{2}^{+}>N_{2}^{-}>N_{2}^{2-}>{{N}_{2}}\] done clear
  C)
  \[{{N}_{2}}>N_{2}^{+}=N_{2}^{-}>N_{2}^{2-}\] done clear
  D)
  \[N_{2}^{-}>N_{2}^{{}}=N_{2}^{+}>N_{2}^{2-}\] done clear
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• question_answer21)
  Which of the following molecule is not having perfect geometrical shape.
  A)
  \[PC{{l}_{3}}{{F}_{2}}\] done clear
  B)
  \[C{{F}_{4}}\] done clear
  C)
  \[B{{F}_{2}}Cl\] done clear
  D)
  \[{{[Si{{F}_{6}}]}^{2-}}\] done clear
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• question_answer22)
  The orbital picture of a triplet carbene is :
  A)
  done clear
  B)
  done clear
  C)
        done clear
  D)
  done clear
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• question_answer23)
                          The molecule that will have minimum dipole moment is
  A)
  \[C{{H}_{3}}Cl\] done clear
  B)
  \[C{{H}_{2}}Cl\] done clear
  C)
  \[CHC{{l}_{3}}\] done clear
  D)
  \[CFC{{l}_{3}}\] done clear
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• question_answer24)

  Which of the following option is correct about \[N{{O}_{2}}\And Cl{{O}_{2}}?\]

  (i) Both are paramagnetic species

  (ii) Both compounds dimerised readily

  (iii) Both have \[s{{p}^{2}}\] hybridisation

  (iv) Both have Bent shape.

  A)
  (i), (ii) done clear
  B)
  (i), (iii), (iv) done clear
  C)
  (ii), (iii), (iv) done clear
  D)
  only (i) done clear
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• question_answer25)
  The structure of \[I{{F}_{7}}\]  is
  A)
  pentagonal bipyramid  done clear
  B)
  square pyramid done clear
  C)
  trigonal bipyramid    done clear
  D)
  octahedral done clear
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• question_answer26)
  Which of the following is correct regarding ionization potential?
  A)
  \[O_{2}^{2+}>NO\] done clear
  B)
  \[O_{2}^{2+}<NO\] done clear
  C)
  \[O_{2}^{{}}<NO\] done clear
  D)
  \[O_{2}^{2+}=NO\] done clear
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• question_answer27)
  In which of the following sets, each member has linear shape:
  A)
  \[N_{3}^{-},\text{ }I_{3}^{+},\text{ }Xe{{F}_{2}}\] done clear
  B)
  \[NO_{2}^{+},\text{ }O_{3}^{{}},\text{ }{{C}_{2}}{{H}_{2}}\] done clear
  C)
  \[N_{3}^{-},\text{ }I_{3}^{-},\text{ }NO_{2}^{+}\] done clear
  D)
  \[BeC{{l}_{2}},\text{ }Xe{{F}_{2}},\text{ }ClO_{2}^{-}\] done clear
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• question_answer28)
  What is not true about ice?
  A)
  It has open cage like structure              done clear
  B)
  It has less density than water done clear
  C)
  Each O atom is surrounded by 4 H atoms    done clear
  D)
  Each O atom has four H-bonds around it done clear
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• question_answer29)
  Arrange the following compounds in increasing order of their ionic character: \[SnC{{l}_{2}},SnC{{l}_{4}},SiC{{l}_{4}},Sn{{F}_{4}},Sn{{F}_{2}}\]
  A)
  \[Sn{{F}_{2}}<SnC{{l}_{2}}<Sn{{F}_{4}}<SnC{{l}_{4}}<SiC{{l}_{4}}\]        done clear
  B)
  \[Sn{{F}_{2}}<SnC{{l}_{2}}<Sn{{F}_{4}}<SiC{{l}_{4}}<SnC{{l}_{4}}\] done clear
  C)
  \[SiC{{l}_{4}}<SnC{{l}_{4}}<Sn{{F}_{4}}<SnC{{l}_{2}}<Sn{{F}_{2}}\] done clear
  D)
  \[SnC{{l}_{4}}<Sn{{F}_{4}}<SnC{{l}_{2}}<Sn{{F}_{2}}<SiC{{l}_{4}}\] done clear
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• question_answer30)
  Bond length of ethane (I), ethene (II), acetylene (III), and benzene (IV) follows the order:
  A)
  \[I>II>III>IV\] done clear
  B)
  \[I>II>IV>III\] done clear
  C)
  \[I>IV>II>III\] done clear
  D)
  \[III>IV>II>I\] done clear
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• question_answer31)
  Amongst the following, the total number of species which does/do not exist is : \[S{{F}_{6}},B{{F}_{6}}^{3-},S{{F}_{4}},O{{F}_{4}},Al{{F}_{6}}^{3-},P{{H}_{5}},PC{{l}_{5}},NC{{l}_{5}},SC{{l}_{6}}\]
  A)
  9 done clear
  B)
  5             done clear
  C)
  6 done clear
  D)
  8 done clear
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• question_answer32)
  Most favorable condition for ionic bonding are:
  A)
  low charge on ions, large cations, small anions done clear
  B)
  low charge on ions, large cations, large anions done clear
  C)
  high charge on ions, small cations, large anions done clear
  D)
  high charge on ions, large cations, small anions done clear
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• question_answer33)
  In which of the following mixtures, the London dispersion force acts as major intermolecular force of attraction?
  A)
  Sodium chloride and water.                 done clear
  B)
  Cyciohexane and carbontetrachloride. done clear
  C)
  Water and ethyl alcohol.                    done clear
  D)
  Benzene and acetone. done clear
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• question_answer34)
  Which of the following is incorrect?
  A)
  One of the favourable conditions for the formation of an anion is high negative value of electron gain enthalpy of an element. done clear
  B)
  Ionic bonds are non-directional whereas covalent bonds are directional in nature. done clear
  C)
  One of the favourable conditions for the formation of ionic bonds is low lattice energy. done clear
  D)
  Ionic compounds have high melting and boiling points and are soluble in polar solvents. done clear
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• question_answer35)
  Which combination is best explained by the coordinate covalent bond?
  A)
  \[{{H}^{+}}+{{H}_{2}}O\] done clear
  B)
  \[Cl+Cl\] done clear
  C)
  \[Mg+\frac{1}{2}{{O}_{2}}\] done clear
  D)
  \[{{H}_{2}}+{{I}_{2}}\] done clear
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