The bond lengths (in pm ) of C - C , C ≡ C and C = C are:

C - C C ≡ C C = C 154 120 133

C - C C ≡ C C = C 120 154 133

C - C C ≡ C C = C 154 120 139

C - C C ≡ C C = C 140 133 139

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Which of the following bonds required the largest amount of bond energy to dissociate the atom concerned?

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Important Questions on Chemical Bonding and Molecular Structure

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The intermolecular potential energy for the molecules

A

B

C

and

D

given below suggests that:
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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

Arrange the following compounds in increasing order of

C - O H

bond length: methanol, phenol,

p

-ethoxyphenol

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The correct order of

C - O

bond length is:

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

How many ions of the following have a bond order of $2.5 ?$

$N_{2}^{-}; {NO}^{-}; C_{2}^{-}; N_{2}^{+}; C_{2}^{2 -}; {CN}^{+}$

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

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

Average bond enthalpy of water is

464 \cdot 5 kJ {mol}^{- 1}

. If the energy required to break first

O - H

bond is

502 kJ {mol}^{- 1}

, how much energy per mol is required to break second

O - H

bond ?

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The number of bonds between sulphur and oxygen atoms in

S_{2} O_{8}^{2 -}

and the number of bonds between sulphur and sulphur atoms in rhombic sulphur, respectively are:

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

Among the following species, the

H - X - H

angle (

X = B, N

P

) follows the order.

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Maximum bond angle at nitrogen is present in which of the following?

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

Among the following molecules, the one with the largest bond angle at the central atom is

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

Bond lengths (in

pm

) of

C - H, C - C, C = C

and

C \equiv C

bonds, respectively are:

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Find out the correct order of ionic character in the following molecules

$(i) {SO}_{2}$ $(ii) K_{2} O$ $(iii) N_{2}$ $(iv) LiF$

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The bond lengths (in $pm)$ of $C - C, C \equiv C$ and $C = C$ are:

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The compound that has the largest

H - M - H

bond angle

(M = N, O, S, C)

, is :

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

In which of the following the

C - H

bond distance is the longest?

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The correct order of bond dissociation enthalpy of halogens is:

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Pick the INCORRECT statement among those given below

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

If enthalpy of atomization for

B r_{2} (l)

x k J / m o l

and bond enthalpy for

B r_{2}

y k J / m o l

, the relation between them

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The most polarisable ion among the following is.

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters

The number of

π

-bonds and

σ

-bonds present in naphthalene are respectively

Which of the following bonds required the largest amount of bond energy to dissociate the atom concerned?

Important Questions on Chemical Bonding and Molecular Structure

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