Daniel Poon's answer to chloe's Junior College 1 H2 Maths Singapore question.

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Daniel Poon
Daniel Poon's answer
27 answers (Tutor Details)
1st
In this question, it is crucial to notice that each N atom in N2H4 has a lone pair of electrons, while the B atom in BF3 is electron deficient with only 6 electrons.

In part (ii), because there are two atoms of N in N2H4 with lone pairs of electrons, each B atom in BF3 can accept a lone pair of electrons from an N atom via dative bonding to attain a stable octet electronic configuration.
chloe
Chloe
2 years ago
thank you !