HARD
11th CBSE
IMPORTANT
Earn 100

Define the term electronegativity. Explain it with one suitable example. How does it help in predicting whether a covalent bond is polar or non-polar? Explain each case with one example.

Important Questions on Chemical Bonding and Molecular Structure

HARD
11th CBSE
IMPORTANT
What do you understand by partial ionic character of covalent bonds?
HARD
11th CBSE
IMPORTANT
Define Dipole moment. Draw dipole diagrams of H2O and BF3.
HARD
11th CBSE
IMPORTANT
Explain: Each carbon-oxygen bond in CO2 molecule is polar but the molecule itself is non-polar.
HARD
11th CBSE
IMPORTANT
Explain the term dipole moment. Name two molecules which have a dipole moment and two molecules which do not have dipole moment. What is the significance of dipole moment?
HARD
11th CBSE
IMPORTANT
Give reasons for the following:
In solution, reactions of covalent compounds are slow but those of ionic compounds are fast.
HARD
11th CBSE
IMPORTANT

Give reasons for the following:

Covalent compounds show isomerism but ionic compounds do not.

HARD
11th CBSE
IMPORTANT
What type of hybridization is associated with the central atom when the atoms attached to it form an equilateral triangle ?
HARD
11th CBSE
IMPORTANT

What type of hybridization is associated with the central atom when the atoms attached to it form a regular tetrahedron?