Parameters of Covalent Bond

IMPORTANT

Parameters of Covalent Bond: Overview

This topic covers concepts such as bond parameters, bond length, bond enthalpy, bond order, and polarity of covalent bonds.

Important Questions on Parameters of Covalent Bond

EASY
IMPORTANT

Bond formation is :

HARD
IMPORTANT

Which of the following statements are true.

(i) In the structure of   HNO 3,  the   NO  bond (121 pm) is shorter than the   NOH  bond (140 pm).

(ii) All the   PCl  bonds in   PCl 5  are not equivalent.

(iii)   ICl  is more reactive than   I 2 .

MEDIUM
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The bond order and magnetic property of acetylide ion are same as that of

MEDIUM
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Consider the following statement

(A) NF3 molecules has a trigonal planar structure.

(B) Bond Length of N2 is shorter than O2.

(C) Isoelectronic molecules or ions have identical bond order.

(D) Dipole moment of H2S is higher than that of water molecule.

Choose the correct answer from the options given below:

HARD
IMPORTANT

Assuming the bond direction to be Z-axis, which of the overlapping of atomic orbitals of two atoms A and B will be result in bonding:

 (I) s orbital of A and px  orbital of B

(II) s orbital of A and pz orbital of B

(III) py orbital of A and pz orbital of B

(IV) s- orbitals of A and B

MEDIUM
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Whose bond angle will be more Cl2O or H2O.

MEDIUM
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The most covalent halide of s-block is 

MEDIUM
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The weakest Cl-O bond found in :

MEDIUM
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Which of the following statements is TRUE ?

HARD
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Why bond angle of OF2 is lesser than H2O even though they have the same symmetry and structure?

EASY
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Why urea is polar?

EASY
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What do you mean by the term polarity in chemistry?

EASY
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Arrange the following in increasing order of bond strength.

Question Image

MEDIUM
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Describe the relations between the percentage s character of an organic compound with its polarity.

HARD
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How many in the following species all the bond angles are not identical?

CH4,CHCl3,NH3, ClF3, SF4, PCl5,XeO3, SF6, CO2, H2CO3, PCl3, SO42-

MEDIUM
IMPORTANT

Which one of the following hydrides has largest bond angle?

H2O,H2 S,H2 Se or H2Te

EASY
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Discuss the bond enthalpy of the polyatomic molecules.

EASY
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Compare the bond enthalpies of single, double and triple bonds.

EASY
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The high density of water compared to ice is due to

MEDIUM
IMPORTANT

In which of the following pairs, the second compound is more polar than the first ?