Question

Which of the following molecule has a linear shape?
a) Be2Cl
b) BF3
c) CH4
d) C2H4

Answer 1

Answer:

Be2CL

Explanation:

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Answer 2

OPTION (a) IS CORRECT.

(a) $BeCl_{2}$

Explanation:

• The hybridization of a molecule is due to the intermixing of the atomic orbitals with same energies and symmetry to form molecular orbitals.
• A molecule having sp hybridization is linear in shape, sp2 hybridization is trigonal planar, sp3 is tetrahedral.
• Beryllium has a valency of 2, chloride has a valency of 1.
• Beryllium forms two bond with chloride and forms a linear shape.
• BF3 has a trigonal planar shape, CH4 has tetrahedral shape and C2H4 is bent in shape.
• Therefore, option (a) is correct.