NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 1

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Isostructural species are those which have the same shape and hybridisation. Among the given species identify the isostructural pairs.

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Important Questions on Chemical Bonding and Molecular Structure

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 2

Polarity in a molecule and the dipole moment depends primarily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 3

The types of hybrid orbitals of nitrogen in

{NO}_{2}^{+}

,

{NO}_{3}^{-}

and

{NH}_{4}^{+}

respectively are expected to be

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 4

Hydrogen bonds are formed in many compounds e.g.,

H_{2} O

,

HF

,

{NH}_{3}

. The boiling point of such compounds depends to a large extent on the strength of hydrogen bond and the number of hydrogen bonds. The correct decreasing order of the boiling points of above compounds is:

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 5

In

{PO}_{4}^{3 -}

ion the formal charge on the oxygen atom of

P - O

bond is

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 6

In

{NO}_{3}^{-}

ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 7

Which of the following species has tetrahedral geometry?

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 8

Number of $π$ bonds and $σ$ bonds in the following structure is–

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NCERT Exemplar Chemistry - Class 11>Chapter 4 - Chemical Bonding and Molecular Structure>Multiple Choice Questions (Type-I)>Q 9

Which molecule/ion out of the following does not contain unpaired electrons?