Consider the molecules CH 4 , NH 3, and H 2 O. The incorrect statement among the following is -

The H-O-H bond angle in H 2 O is larger than the H-C-H bond angle in CH 4

The H-O-H bond angle in H 2 O is smaller than the H-N-H bond angle in NH 3

The H-C-H bond angle in CH 4 is larger than the H-N-H bond angle in NH 3

The H-C-H bond angle in CH 4 , the H-N-H bond angle in NH 3, and the H-O-H bond angle in H 2 O are all greater than 90°

Chemistry - Chemical Bonding Molecular Structure - Quiz-3

Which of the following has the minimum bond length?

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O₂
0%

^{$O_{2}^{-}$}
0%

$O_{2}^{2 -}$
0%

^{$O_{2}^{+}$}

Which of the following are isoelectronic and isostructural?

${NO}_{3}^{-}, {CO}_{3}^{- 2}, {ClO}_{3}^{-}, {SO}_{3}$

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${NO}_{3}^{-}, {CO}_{3}^{- 2}$
0%

${SO}_{3}, {NO}_{3}^{-}$
0%

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

Which of the following has largest bond angle.

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H₂O
0%

F₂O
0%

Cl₂O
0%

H₂S

In the molecular orbital diagram for $O_{2}^{+}$ ion. the HOMO is :-

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$σ$ MO orbital
0%

π MO orbital
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π^* MO orbital
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$\overset{*}{σ}$ MO orbital

The correct order of H-bond strength in the following compounds is:

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H₂O > H₂O₂ > HF > H₂S
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HF > H₂O₂ > H₂O > H₂S
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HF > H₂O > H₂S > H₂O₂
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HF > H₂O > H₂O₂ > H₂S

A pair of species that have identical shapes is :

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NO₂⁺ and NO₂^-
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PCl₅ and BrF₅
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XeF₄ and ICI₄^-
0%

TeCl₄ and XeO₄

Which of the following is correct :-

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Extent of hydration is PCl₅ > SiCl₄ and BCl₃ < CCl₄
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K⁺ ion will be more Hydrated than Li⁺
0%

In BCl₃ there are no vacant d-orbitals but still it can undergo expansion
0%

None

Carbon atom in C₂(CN)₄ are

0%

sp hybridised
0%

sp² hybridised
0%

sp and sp² hybridised
0%

sp, sp² and sp³ hybridised

The correct order in which the O-O bond length increases in the following is

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H₂O₂ < O₂ < O₃
0%

O₃ < H₂O < O₂
0%

O₂ < O₃< H₂O₂
0%

O₂ < H₂O₂ < O₃

Carbon suboxide (C₃O₂) has

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Linear structure
0%

Bent structure
0%

Trigonal structure
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Disorted tetrahedral structure

$N_{2}$ and $O_{2}$ are converted to monocations $N_{2}^{+}$ and $O_{2}^{+}$ respectively. Which of the following is incorrect?

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In $N_{2}^{+}$ , the $N - N$ bond weakens.
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In $O_{2}^{+}$ , the $O - O$ bond order increases.
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In $O_{2}^{+}$ , the paramagnetism decreases.
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$N_{2}^{+}$ becomes diamagnetic.

The species, having bond angles of 120° is :

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PH₃
0%

ClF₃
0%

NCl₃
0%

3. BCl₃

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

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BeCl_2, XeF₂
0%
Tel_2, XeF₂
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${IBr}_{2}^{-}$ _,XeF₂
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IF₃, XeF₂

Which one of the following pairs of species have the same bond order?

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CO, NO
0%

O_2-, CN-
0%

CN- , NO+
0%

N+ , CN+

In which of the following compounds is an intramolecular hydrogen bond present?

0%

H₂O₂
0%

HCN
0%

Cellulose
0%

Concentrated acetic acid

The hybridisations of atomic orbitals of nitrogen in ${NO}_{2}^{+}, {NO}_{3}^{-}$ and ${NH}_{4}^{+}$ are

(a) sp, sp³ and sp² (b) sp², sp³ and sp

0%
1
0%
2
0%
3
0%
4

The correct shape and hybridisation for XeF₄ are

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octahedral, sp³d²
0%

trigonal bipyramidal, sp³d²
0%

planar triangle, sp³d³
0%

square planar, sp³d²

In which of the following molecules, all atoms are coplanar ?

0%
1
0%
2
0%
3
0%
4

Predict the correct order among the following.

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lone pair-lone pair>bond pair-bond pair>lone pair-bond pair
0%

bond pair-bond pair>lone pair-bond pair>lone pair-lone pair
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lone pair-bond pair>bond pair-bond pair>lone pair-lone pair
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lone pair-lone pair>lone pair-bond pair>bond pair-bond pair

The pair of electrons in the given carbanion, CH₃C $\equiv$ C^-, is present in which of the following orbitals?

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sp³
0%

sp²
0%

sp
0%

2p

Consider the molecules CH₄, NH_3, and H₂O. The incorrect statement among the following is -

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The H-O-H bond angle in H₂O is larger than the H-C-H bond angle in CH₄
0%

The H-O-H bond angle in H₂O is smaller than the H-N-H bond angle in NH₃
0%

The H-C-H bond angle in CH₄ is larger than the H-N-H bond angle in NH₃
0%

The H-C-H bond angle in CH₄, the H-N-H bond angle in NH_3, and the H-O-H bond angle in H₂O are all greater than 90°

Which of the following species contains equal number of $σ$ and $π$ bonds?

0%

${HCO}_{3}^{-}$
0%

XeO₄
0%

(CN)₂
0%

CH₂(CN)₂

The correct bond order in the following species is

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$O_{2}^{2 +} > O_{2}^{+} > O_{2}^{-}$
0%

$O_{2}^{2 +} < O_{2}^{-} < O_{2}^{+}$
0%

$O_{2}^{+} > O_{2}^{-} < O_{2}^{2 +}$
0%

$O_{2}^{-} < O_{2}^{+} > O_{2}^{2 +}$

The total number of $π$ -bond electrons in the following structure is

2. 8

0%

4
0%

3. 12
0%
3
0%

16

In which of the following pairs, both the species are not isostructural?

0%

${SiCl}_{4}, {PCl}_{4}^{+}$
0%

Diamond, silicon carbide
0%

${NH}_{3}, {PH}_{3}$
0%

${XeF}_{4}, {XeO}_{4}$

Decreasing order of stability of $O_{2}, O_{2}^{-}, O_{2}^{+} and O_{2}^{2 -} is$

0%

$O_{2}^{+} > O_{2} > O_{2}^{-} > O_{2}^{2 -}$
0%

$O_{2}^{2 -} > O_{2}^{-} > O_{2}^{} > O_{2}^{+}$
0%

$O_{2}^{} > O_{2}^{+} > O_{2}^{2 -} > O_{2}^{-}$
0%

$O_{2}^{-} > O_{2}^{2 -} > O_{2}^{+} > O_{2}^{}$

Aqueous solution of which of the following compounds is the best conductor of electric

current?

0%

Acetic acid, C₂H₄O₂
0%

Hydrochloric acid, HCl
0%

Ammonia, NH₃
0%

Fructose, C₆H₁₂O₆

A molecule having the maximum dipole moment among the following is -

0%

CO₂
0%

CH₄
0%

NH₃
0%

NF₃

Which among the following species has a triangular planar shape?

0%

N₃^-
0%

NO₃^-
0%

NO₂^-
0%

CO₂

Dipole-induced dipole interactions are present in which of the following pairs?

0%

H₂O and alcohol
0%

Cl₂ and CCl₄
0%

HCl and He atoms
0%

SiF₄ and He atoms

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Practice Chemistry Quiz Questions and Answers

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Practice Chemistry Quiz Questions and Answers

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