In which of the following molecular species σ -dative bond is present?

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Question: Answered & Verified by Expert

In which of the following molecular species

σ

-dative bond is present?

ChemistryChemical Bonding and Molecular StructureJEE Main

Options:

A ${BF}_{3}$
B $B e_{2} {C l}_{4}$
C ${NH}_{3}$
D ${BH}_{3}$

Solution:

2912 Upvotes Verified Answer

The correct answer is:

B e_{2} {C l}_{4}

In

B e_{2} {C l}_{4}

octet of Be was not complete. So, it shows bridge bonding.

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