Work Step by Step
Of the given options, only BCl3 can accept a pair of nonbonding electrons, in the boron atom, without violating the octet rule. PH3 has one, H2S has two and HS- has three pairs of nonbonding electrons.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.