Important Questions of Chemical Bonding and Molecular Structure Chemistry | Zigya

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391.

Which one of the following species has the plane triangular shape?

  • N3

  • NO3-

  • NO2-

  • NO2-

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392.

Magnetic moment 2.83 BM is given by which of the following ions?

(At. no.: Ti =22; Cr=24; Mn=25; Ni=28)

  • Ti3+

  • Ni2+

  • Cr3+

  • Cr3+

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393.

Which of the following organic compounds has same hybridization as its combustion product -(CO)2?

  • Ethane

  • Ethyne

  • Ethene

  • Ethene

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394.

Bond order of 1.5 is shown by

  • O2+

  • O2-

  • O22-

  • O22-

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395.

Which of the following species contains three bond pairs and one lone pair around the central atoms?

  • H2O

  • BF3

  • NH2-

  • NH2-

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396.

The pair of species with t he same bond order is 

  • O22-, B2

  • O2+, NO+

  • NO, CO

  • NO, CO

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397.

Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?

  • [BCl3 and BrCl3]

  • [NH3 and NO3-]

  • [NF3 and BF3]

  • [NF3 and BF3]

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398.

During the change of O2 to O2- ion, the electron adds on which one of the following orbitals?

  • π* orbital

  • π orbital

  • σ* orbital

  • σ* orbital

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399.

Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.

  • NO< O2-<C22- < He2+

  •  O2- <NO< C22- < He2+

  • C22- < He2+ <O2- <NO

  • C22- < He2+ <O2- <NO

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400.

Which of the two ions from the list given below have the geometry that is explained by the same hybridization of orbitals

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