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Valence Bond Theory

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

Heitler and London introduced which theory?

a)

VSEPR Theory

b)

Valence Bond Theory

c)

Molecular Orbital Theory

d)

Covalent Theory

2.

Choose all the old attractive force(s) (ie. when atoms are isolated)

a)

NA - EA

b)

NA - NB

c)

NB - EB

d)

NB - EA

e)

NA - EB

3.

Choose all the new repulsive force(s) (ie. when atoms come together)

a)

NA - EA

b)

NA - NB

c)

NB - EB

d)

EA - EB

e)

NA - EB

4.

Choose all the new attractive force(s) (ie. when atoms come together)

a)

NA - EA

b)

NA - NB

c)

NB - EA

d)

EA - EB

e)

NA - EB

5.

Energy released during bond formation is called

a)

Bond Creation Energy

b)

Disassociation Energy

c)

Binding Energy of Molecules

d)

Bond Enthalpy

6.

Greater the overlap of the orbitals, _________________________

a)

lesser the bond strength

b)

greater the bond strength

c)

bond strength remains the same

d)

no bond formation

7.

Choose all possible overlaps

a)

positive overlap

b)

rational overlap

c)

negative overlap

d)

integer overlap

e)

zero overlap

8.

Which is the stronger bond?

a)

 \sigma\ Bond
 

b)

 π Bond\pi\ Bond  

9.

s-s overlap is a _______

a)

 \sigma\ Bond
 

b)

 π Bond\pi\ Bond  

10.

px - px overlap (perpendicular to internuclear axis) is a _______

a)

 \sigma\ Bond
 

b)

 π Bond\pi\ Bond