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  • Which of the following molecules is the least likely to form a coordinate covalent bond?Option: 1 <img alt="\mathrm{BF_{3}}" src="https://entrancecor

Which of the following molecules is the least likely to form a coordinate covalent bond?

Option: 1

\mathrm{BF_{3}}


Option: 2

\mathrm{BCl_{3}}


Option: 3

\mathrm{BBr_{3}}


Option: 4

\mathrm{Bl_{3}}


Answers (1)

best_answer

A coordinate bond is formed between electron-rich and electron-deficient atoms. The donor atom should have at least one lone pair of electrons and the acceptor atom should have at least one vacant orbital.

\mathrm{BF}_3 is the least likely to form a coordinate covalent bond because it has the strongest (pp) back bonding. This means that the electron density on the boron atom in \mathrm{BF}_3 is already high, so it is less likely to accept an electron pair from another atom.

Posted by

Shailly goel

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