Chemical Bonding & Molecular Structure Test

Result

Chemical Bonding & Molecular Structure Test - 17

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following molecules/ions does not contain unpaired electrons ?

A

B
B₂

C

D
O₂
Question 2
4 / -1

Which of the following species has a bond order other than 3?

A
CO

B
CN^-

C
NO⁺

D
Question 3
4 / -1

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH₃ (1.5 D) is larger than that of NF₃ (0.2D). This is because

A
in NH₃ the atomic dipole and bond dipole are in the same direction whereas in NF₃ these are in opposite directions

B
in NH₃ as well as NF₃ the atomic dipole and bond dipole are in opposite directions

C
in NH₃ the atomic dipole and bond dipole are in the opposite directions whereas in NF₃ these are in the same direction

D
in NH₃ as well as in NF₃ the atomic dipole and bond dipole are in the same direction
Question 4
4 / -1

Molecular orbital theory was given by

A
Kossel

B
Mosley

C
Mulliken

D
Werner
Question 5
4 / -1

Which of the following is isoelectronic with CO₂ ?

A
NO₂

B
NO

C
N₂O

D
N₂O₄
Question 6
4 / -1

A
1.5

B
3.0

C
2.5

D
2.0
Question 7
4 / -1

O²⁺₂ has a bond order of

A
1

B
2

C
3

D
4
Question 8
4 / -1

Which of the following would have a permanent dipole moment?

A
SiF₄

B
SF₄

C
XeF₄

D
BF₃
Question 9
4 / -1

The number of valence shell bonding electrons to be distributed in the Lewis electron dot model for HNNN is

A
6

B
10

C
11

D
16
Question 10
4 / -1

The total number of lone pairs of electrons in melamine is

A
4

B
7

C
6

D
9

Solution

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Re-Attempt Weekly Quiz Competition

Chemical Bonding & Molecular Structure Test - 17

Result

Chemical Bonding & Molecular Structure Test - 17

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Question 1

B2

O2

Question 2

CO

CN-

NO+

Question 3

in NH3 the atomic dipole and bond dipole are in the same direction whereas in NF3 these are in opposite directions

in NH3 as well as NF3 the atomic dipole and bond dipole are in opposite directions

in NH3 the atomic dipole and bond dipole are in the opposite directions whereas in NF3 these are in the same direction

in NH3 as well as in NF3 the atomic dipole and bond dipole are in the same direction

Question 4

Kossel

Mosley

Mulliken

Werner

Question 5

NO2

NO

N2O

N2O4

Question 6

1.5

3.0

2.5

2.0

Question 7

1

2

3

4

Question 8

SiF4

SF4

XeF4

BF3

Question 9

6

10

11

16

Question 10

4

7

6

9

Solution

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B₂

O₂

CN^-

NO⁺

in NH₃ the atomic dipole and bond dipole are in the same direction whereas in NF₃ these are in opposite directions

in NH₃ as well as NF₃ the atomic dipole and bond dipole are in opposite directions

in NH₃ the atomic dipole and bond dipole are in the opposite directions whereas in NF₃ these are in the same direction

in NH₃ as well as in NF₃ the atomic dipole and bond dipole are in the same direction

NO₂

N₂O

N₂O₄

SiF₄

SF₄

XeF₄

BF₃