Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 11

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Earn 100

Assertion: Bond angle of $H_{2} S$ is smaller than $H_{2} O$ .
Reason: Electronegativity of the central atom increases, bond angle decreases.

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Important Questions on Chemical Bonding and Molecular Structure

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 12

The shapes of

S F_{4}

and

X e F_{2}

respectively are

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 13

Consider the statements :

I. Bond length in ${N_{2}}^{+}$ is $0.002$ $\overset{\circ}{A}$ greater than in $N_{2}$

II. Bond length in ${NO}^{+}$ is $0.09$ $\overset{\circ}{A}$ less than in $NO$

III. ${O_{2}}^{2 -}$ has shorter bond length than $O_{2}$

Which of the following statements are true?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 14

The correct order of increasing

C - O

bond length of

CO, {CO}_{3}^{2 -}, {CO}_{2}

is:

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 15

In formation of

{NO}^{+}

from

NO

, the electron is removed from

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 16

Which of the following conversions involve change in both hybridisation and shape?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 17

Among the following, the true statements are

I .

{PH}_{5}

and

{BiCl}_{5}

do not exist.

II .

pπ - dπ

is present in

{SO}_{2}

III .

Electrons travel with speed of light.

IV .

{SF}_{4}

and

{CH}_{4}

has same shape

V .

I_{3}^{+}

has bent shape.

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 18

Assertion

(A)

: The central atom of

{NH}_{3}

and

H_{2} O

, are both

{sp}^{3}

-

hybridised yet

H - N - H

bond angle is greater than that of

H - O - H

.
Reason

(R) : In {NH}_{3}, N -

atom has one lone pair of electron whereas in

H_{2} O,

oxygen atom has two low pairs of electron.

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 19

Which is incorrect regarding

S

and

P

mixing along

Z -

axis.