Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 48

HARD

11th CBSE

IMPORTANT

Earn 100

What is meant by bonding and antibonding molecular orbitals? Give the number of electrons which occupy the bonding orbitals in ${H_{2}}^{+}, H_{2}$ and ${He}_{2}^{+}$ .

Important Questions on Chemical Bonding and Molecular Structure

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 49

What are the conditions for combination of atomic orbitals? Which species of

H_{2}

,

H_{2}^{+}

and

H_{2}^{-}

are paramagnetic and why?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 50

Use the energy level diagram to show that

N_{2}

would be expected to have a triple bond,

F_{2}

a single bond and

{Ne}_{2}

no bond.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 51

What is meant by bond order? Calculate the bond order of

{He}_{2}^{+}, O_{2}

and

N_{2}

molecules.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 52

Calculate the bond order for

H_{2}^{+}

ion. Is this ion expected to be paramagnetic or diamagnetic and why?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 53

Arrange the following molecular species in increasing order of stability (giving bond orders):-

O_{2}, O_{2}^{+}, O_{2}^{- 1}, O_{2}^{2 -}

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 54

Explain why the bond in

H_{2}^{+}

is longer than

H_{2}

.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 55

Give the molecular orbital energy diagram for oxygen molecule and account for its paramagnetic property.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 56

Distinguish between two aspects of bonding and anti-bonding orbitals.