Chemical Bonding & Molecular Structure Test

Result

Chemical Bonding & Molecular Structure Test - 55

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following, are isoelectronic and isostructural ?

A

B

C

D

Solution
Question 2
4 / -1

What type of hybridisation takes place in the N - atom Of NH₃ ?

A
sp²

B
sp³

C
dsp²

D
sp

Solution
Question 3
4 / -1

If Z-axis is taken as the molecular axis, then π orbitals are formed by

A
2p_x and 2p_z

B
2p_x and 2p_x

C
2s and 2p_y

D
2s and 2p_z

Solution
Question 4
4 / -1

A pair of compounds which have odd electrons in the group NO,CO, ClO₂,N₂O₅,SO₂ and O₃ are

A
NO and ClO₂

B
CO and SO₂

C
ClO₂ and CO

D
SO₂ and O₃
Question 5
4 / -1

The cyanide ion, CN^- and N₂ are isoelectronic. But in contrast to CN^- , N₂ is chemically inert, because of

A
low bond energy

B
absence of bond polarity

C
unsymmetrical electron distribution

D
presence of more number of electrons in bonding orbitals
Question 6
4 / -1

A diatomic molecule has a dipole moment of 1.2 D. If the bond distance is 1Å, what percentage of electronic charge exists on each atom?

A
12% of e

B
19% of e

C
25% of e

D
29% of e

Solution
Question 7
4 / -1

In which of the following set of molecules is the order of boiling points incorrect ?

A
Xe > Ar > He

B
HF > HCl > HBr

C
H₂ O > H₂Se >H ₂S

D
C₃H₈ > C₂H₆ > CH₄
Question 8
4 / -1

The electronic configurations of four elements are :

A
L₂P, RL,PQ, R₂Q

B
LP, RL, PQ, RQ

C
P₂L, RL, PQ,RQ₂

D
LP, R₂L, P₂Q, RQ
Question 9
4 / -1

AICl₃ is covalent while AIF₃ is ionic. This fact can be justified on the basis of

A
Valence bond theory

B
Crystal structure

C
Lattice energy

D
Fajan Rule
Question 10
4 / -1

The nature of π - bond in perchlorate ion is

A
O (dπ) - Cl (pπ)

B
O (pπ ) - Cl (dπ )

C
O (dπ) - Cl (dπ )

D
O (dπ) - Cl (dπ)

Solution