Chemical Bonding & Molecular Structure Test

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Chemical Bonding & Molecular Structure Test - 24

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Weekly Quiz Competition

Question 1
4 / -1

Out of the compounds below the vapour pressure of (B) at a particular temperature is

A
higher than that of (A)

B
lower than that of (A)

C
higher or lower than (A), depending on the size of the vessel

D
same as that of (A)
Question 2
4 / -1

The low density of ice compared to water is due to

A
induced dipole-induced dipole interactions

B
dipole-induced dipole interactions

C
hydrogen bonding interactions

D
dipole-dipole interactions
Question 3
4 / -1

What is the dominant intermolecular force or bond that must be overcome in converting liquid CH₃OH to a gas?

A
Dipole-dipole interaction

B
Covalent bonds

C
London dispersion force

D
Hydrogen bonding
Question 4
4 / -1

Which of the following compounds would have the highest boiling point ?

A
CH₃ CH₂ CH₂ CH₃

B
CH₃ NH₂

C
CH₃ OH

D
CH₂ F₂
Question 5
4 / -1

Unusually high boiling point of water is result of

A
intermolecular hydrogen bonding

B
intramolecular hydrogen bonding

C
both infra and inter molecular hydrogen bonding

D
high specific heat
Question 6
4 / -1

Glycerol is more viscous than ethanol due to

A
high molecular weight

B
high boiling point

C
many hydrogen bonds per molecule

D
Fajan's rule
Question 7
4 / -1

The comparatively high boiling point of HF is due to

A
high reactivity of fluorine

B
small size of hydrogen atom

C
formation of hydrogen bonds and consequent association

D
high IE of fluroine
Question 8
4 / -1

NH₃ has much higher boiling point than PH₃ because

A
NH₃ has larger molecular weight

B
NH₃ undergoes umbrella inversion

C
NH₃ forms hydrogen bond

D
NH₃ contains ionic bonds whereas PH₃ contains covalent bonds
Question 9
4 / -1

I. 1, 2-dihydroxy benzene
II. 1, 3-dihydroxy benzene
III. 1, 4-dihydroxy benzene
IV. Hydroxy benzene
The increasing order of boiling points of above mentioned alcohols is

A
I < II < III < IV

B
I < II < IV < III

C
IV < I < II < III

D
IV < II < I < III
Question 10
4 / -1

Among the following mixtures, dipole-dipole as the major interaction, is present in

A
benzene and ethanol

B
acetonitrile and acetone

C
KCl and water

D
benzene and carbon tetrachloride

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Re-Attempt Weekly Quiz Competition

Chemical Bonding & Molecular Structure Test - 24

Result

Chemical Bonding & Molecular Structure Test - 24

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SHARING IS CARING

Question 1

higher than that of (A)

lower than that of (A)

higher or lower than (A), depending on the size of the vessel

same as that of (A)

Question 2

induced dipole-induced dipole interactions

dipole-induced dipole interactions

hydrogen bonding interactions

dipole-dipole interactions

Question 3

Dipole-dipole interaction

Covalent bonds

London dispersion force

Hydrogen bonding

Question 4

CH3 CH2 CH2 CH3

CH3 NH2

CH3 OH

CH2 F2

Question 5

intermolecular hydrogen bonding

intramolecular hydrogen bonding

both infra and inter molecular hydrogen bonding

high specific heat

Question 6

high molecular weight

high boiling point

many hydrogen bonds per molecule

Fajan's rule

Question 7

high reactivity of fluorine

small size of hydrogen atom

formation of hydrogen bonds and consequent association

high IE of fluroine

Question 8

NH3 has larger molecular weight

NH3 undergoes umbrella inversion

NH3 forms hydrogen bond

NH3 contains ionic bonds whereas PH3 contains covalent bonds

Question 9

I < II < III < IV

I < II < IV < III

IV < I < II < III

IV < II < I < III

Question 10

benzene and ethanol

acetonitrile and acetone

KCl and water

benzene and carbon tetrachloride

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CH₃ CH₂ CH₂ CH₃

CH₃ NH₂

CH₃ OH

CH₂ F₂

NH₃ has larger molecular weight

NH₃ undergoes umbrella inversion

NH₃ forms hydrogen bond

NH₃ contains ionic bonds whereas PH₃ contains covalent bonds