Chemical Bonding - 1 - Free MCQ Test with solutions for JEE Chemistry

(A) Tetra cyanomethane

⇒ No of bond pair-lone pair repulsion = 8

for maximum ionic character,
* IE of cation must be less
* EA of anion must be larger
⇒ CS and  F
⇒ (B)

s-orbital does not undergo sideways overlapping.

To determine the correct order of interactions based on their strength, let’s examine each type:

1. Van der Waals’ Forces: These are the weakest interactions and include London dispersion forces. They are generally weaker than dipole-dipole interactions, hydrogen bonds, and covalent bonds.

2. Dipole-Dipole Interactions: These are stronger than van der Waals’ forces but weaker than hydrogen bonds and covalent bonds.

3. Hydrogen Bonding: Hydrogen bonds are typically stronger than dipole-dipole interactions and van der Waals’ forces but weaker than covalent bonds.

4. Covalent Bonds: Covalent bonds are strong chemical bonds that involve sharing electrons between atoms. They are much stronger than hydrogen bonds, dipole-dipole interactions, and van der Waals’ forces.

Given this order of strength:

Answer: (c) Van der Waals’ < Dipole-Dipole < Hydrogen Bonding < Covalent