Question

Equilateral shape has

• A. sp hybridisation
• B. $sp^2$ hybridisation
• C. $sp^3$ hybridisation
• D. $dsp^2$ hybridisation

Answer 1

The Correct Option is B

To determine the hybridisation of a molecule with an equilateral shape, we need to understand the concept of hybridisation in chemistry. Hybridisation is a model that explains the shape, bonding, and geometry of molecules.

An equilateral triangle shape is associated with a molecular geometry known as trigonal planar. In a trigonal planar geometry, the central atom forms bonds that create angles of 120° with each other.

When a molecule has a trigonal planar shape, as is the case with an equilateral triangle, the central atom typically undergoes sp^2 hybridisation. This hybridisation involves the mixing of one s orbital and two p orbitals to form three equivalent hybrid orbitals that lie in the same plane.

Let's analyze the provided options:

• sp hybridisation results in a linear shape, and thus is incorrect for an equilateral shape.
• sp^2 hybridisation matches the trigonal planar geometry, which is consistent with an equilateral shape.
• sp^3 hybridisation leads to a tetrahedral shape, which does not form an equilateral triangle.
• dsp^2 hybridisation corresponds to square planar geometry, not an equilateral triangle.

Therefore, the correct answer is sp^2 hybridisation, which fits the description of a molecule with an equilateral shape.