Question

Which among the following is not linear in shape? Becl O NO, CO, OH,​

Answer 1

Answer:

Hint: The shape of a molecule depends on the number of lone pairs and bond pairs present around the central atom

Option A: In CO

2

, the central atom is carbon atom is sp hybridized. It forms two double bonds with oxygen atoms and doesn't have lone pairs.

So, the shape is linear.

Option B: In C

2

H

2

carbon atom is sp hybridized, both the carbon atoms have 4 bond pairs and no lone pairs. So, the shape is linear.

Option C: In HCN carbon atom is sp hybridized, the carbon atom has 4 bond pairs, 3 with nitrogen atom and 1 with hydrogen atom and no lone pairs.

So, it is also a linear molecule.

Option D: In H

2

O the central atom oxygen is sp

3

hybridized. Oxygen has 2 bond pairs and 2 lone pairs, so the geometry is tetrahedral.

The shape of H

2

O is bent due to the presence of 2 lone pairs

Therefore, H

2

O is not a linear molecule.

Final Answer: Option D

Solve any question of Chemical Bonding and Molecular Structure with:-

Answer 2

The following compounds are not linear in shape and they are ONO(NO₂), OH.

• The shape of BeCl₂ or Beryllium Chloride molecule is linear in shape. It has a bond angle of 180° and also a divalent center atom.

• The geometry or shape of Nitrogen dioxide(NO₂) is a bent structure and has an sp² hybridization. The bond angle of NO₂ is 134°. There are one electron pair and two sigma bonds.

• The shape of carbon monoxide(CO) is linear in shape. 180° is the bond angle between oxygen and carbon.
• The shape of Hydroxide(OH) is tetrahedral in shape.