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

done Numerical Value Type Questions - Chemical Bonding and Molecular Structure Total Questions - 15

• question_answer1)
  A diatomic molecule has a dipole moment of 1.2 D, if the bond distance is 1\[\overset{o}{\mathop{A}}\,\], what percentage of electronic charge exists on each atom?
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• question_answer2)
  The dipole moments of a diatomic molecule AB is 0.41 D and bond distance is 2.82, calculate the % ionic character of AB.
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• question_answer3)
  The bond angle between two hybrid orbitals is \[105{}^\circ \]. Calculate the percentage of s-character of hybrid orbital.
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• question_answer4)
  In \[O_{2}^{-},{{O}_{2}}\] and \[O_{2}^{2-}\] molecular species. Find the total number of anti-bonding electrons.
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• question_answer5)
  There are two groups of compounds A and B. Group A contains three compounds \[P{{x}_{4}},Q{{y}_{3}},R{{z}_{2}},\] Group B also contains three compounds\[S{{x}_{4}},\,T{{y}_{3}},\,U{{z}_{2}}\]. Hybridization of each central atom of group A compounds is same as that of iodine in \[IBrC{{l}^{-}}\]while in group B compounds it is same as that of iodine in \[IBrC{{l}^{+}}\] Substituents X, Y and Z exhibit covalence of one in ground state. Then find the value of x/y. Where, x and y are total number of lone pairs present at central atoms of compounds of group A and B respectively.
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• question_answer6)
  Consider the following three compounds (i) \[AX_{2n}^{n-}\], (ii) \[A{{X}_{3n}}\] and (iii) \[AX_{4n}^{n+},\], where central atom A is 15th group element and their maximum covalency is 3n. If total number of proton in surrounding atom X is n and value of n is one, then calculate value of\[''{{x}^{3}}+{{y}^{2}}-z''\]. (Where x, y and z are total number of lone pair at central atom in compound (i), (ii) and (iii) respectively.
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• question_answer7)
  Calculate the value of "x+y-z" here x, y and z are total number of non-bonded electron pair(s), pie \[(\pi )\] bond (s) and sigma \[(\sigma )\] bonds in hydrogen phosphite ion respectively.
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• question_answer8)
  Consider the following compounds:

  (i) \[I{{F}_{5}}\]

  (ii) \[ClI_{4}^{-}\]

  (iii) \[Xe{{O}_{2}}{{F}_{2}}\]

  (iv) \[NH_{2}^{-}\]

  (v) \[BC{{l}_{3}}\]

  (vi) \[BeC{{l}_{2}}\]

  (vii) \[AsCl_{4}^{+}\]

  (viii) \[B{{(OH)}_{3}}\]

  (ix) \[NO_{2}^{-}\]

  (x) \[ClO_{2}^{+}\]

  The value of "x + y - z" is where x, y and z are total number of compounds in given compounds in which central atom used their all three p- orbitals, only two p-orbitals and only one p-orbital in hybridisation respectively.
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• question_answer9)
  Total number of species which used all three p-orbitals in hybridisation of central atoms and should be non-polar also are \[Xe{{O}_{2}}{{F}_{2}},SnC{{l}_{2}},I{{F}_{5}},I_{3}^{+},\,Xe{{O}_{4}},S{{O}_{2}},\,XeF_{7}^{+},Se{{F}_{4}}\]
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• question_answer10)
  Consider the following orbitals \[3s,2{{p}_{x}},4{{d}_{xy}},4d_{z}^{2},3{{d}_{{{x}^{2}}-{{y}^{2}}}},\,\,3{{p}_{y}},\,4s,\,4{{p}_{z}}\] and find total number of orbital(s) having even number of nodal plane.
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• question_answer11)
  For the following molecules: \[PC{{l}_{5}},Br{{F}_{3}},ICl_{2}^{-},XeF_{5}^{-},NO_{3}^{-},Xe{{O}_{2}}{{F}_{2}},\,PCl_{4}^{+},CH_{3}^{+}\] Calculate the value of \[\frac{a+b}{c}\]

  a = Number of species having \[s{{p}^{3}}\]d-hybridisation

  b = Number of species which are planar

  c = Number of species which are non-planar

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• question_answer12)
  Find total number of orbital which can overlap collaterally, (if inter nuclear axis is z) \[s,{{p}_{x}},{{p}_{y}},{{p}_{z}},{{d}_{xy}},{{d}_{yz}},{{d}_{xz}},{{d}_{{{z}^{2}}}},{{d}_{{{x}^{2}}-}}_{{{y}^{2}}}\]
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• question_answer13)
  The total number of lone-pairs of electrons in melamine is
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• question_answer14)
  Among the triatomic molecules/ions, \[BeC{{l}_{2}}\text{, }\] \[N_{3}^{-},\text{ }{{N}_{2}}O,\,NO_{2}^{+},{{O}_{3}},SC{{l}_{2}},ICl_{2}^{-},I_{3}^{-}\] and \[Xe{{F}_{2}},\] the total number of linear molecule(s)/ion(s) where the hybridization of the central atom does not have contribution from the d-orbital(s) is [Atomic number: S = 16, Cl = 17, I = 53 and Xe = 54]
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• question_answer15)
  The sum of the number of lone pairs of electrons on each central atom in the following species is \[{{[TeB{{r}_{6}}]}^{2-}},{{[Br{{F}_{2}}]}^{+}},SN{{F}_{3}}\] and \[{{[Xe{{F}_{3}}]}^{-}}\] (Atomic numbers: N=7, F=9, S=16, Br= 35, Te=52, Xe=54)
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