Match the compound given in column I with the shape given in column II and mark the correct option. Column-I Column-II (A) XeF 6 (i) distorted octahedral (B) XeO 3 (ii) square planar (C) XeOF 4 (iii) pyramidal (D) XeF 4 (iv) square pyramidal

(A) (B) (C) (D) (i) (iii) (iv) (ii)

(A) (B) (C) (D) (iv) (i) (ii) (iii)

(A) (B) (C) (D) (i) (ii) (iv) (iii)

(A) (B) (C) (D) (iv) (iii) (i) (ii)

The formation of the oxide ion, O 2 - ( g ) , from oxygen atom requires first an exothermic and then an endothermic step as shown in below: O g + e - ⟶ O - g ; Δ f H ⊖ = - 141 k J m o l - 1 O - g + e - ⟶ O 2 - g ; Δ f H ⊖ = + 780 k J m o l - 1 Thus process of formation of O 2 - in gas phase is unfavourable though O 2 - is isoelectronic with neon. It is due to the fact that,

Electron repulsion outweighs the stability gained by achieving noble gas configuration.

O - Ion has comparatively smaller size than oxygen atom.

Oxygen is more electronegative.

Addition of electron in oxygen results in larger size of the ion.

E M B I B E

Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 74

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Consider the molecules ${CH}_{4}, {NH}_{3}$ and $H_{2} O$ . Which of the given statement is false ?

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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 75

Match the compound given in column I with the shape given in column II and mark the correct option.

	Column-I		Column-II
(A)	${XeF}_{6}$	(i)	distorted octahedral
(B)	${XeO}_{3}$	(ii)	square planar
(C)	${XeOF}_{4}$	(iii)	pyramidal
(D)	${XeF}_{4}$	(iv)	square pyramidal

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 76

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 77

The hybridisation of atomic orbitals of nitrogen in

{NO}_{2}^{+}, {NO}_{3}^{-}

and

{NH}_{4}^{+}

, respectively are:

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 78

Which of the following pairs of ions is isoelectronic and isostructural?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 79

The correct geometry and hybridization for

{XeF}_{4}

are

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 80

Among the following, which one is a wrong statement?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 81

Which of the following species is not paramagnetic?

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Alpha Question Bank for Medical: Chemistry>Chapter 13 - Chemical Bonding and Molecular Structure>Exercise 4>Q 82

Consider the following species :

{CN}^{+}, {CN}^{-}, NO and CN

Which one of these will have the highest bond order?

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Consider the molecules CH4,NH3 and H2O. Which of the given statement is false ?

Important Questions on Chemical Bonding and Molecular Structure

Learn and Prepare for any exam you want !

Consider the molecules ${CH}_{4}, {NH}_{3}$ and $H_{2} O$ . Which of the given statement is false ?