Part A Which of the following is a Lewis base? O C4H10 O SiBr4 ОН,0 O...

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Answer 1

Answer #1

Lewis bases are those species which can donate electron pair, which means there should be at least one lone pair available on the central atom.

if we consider $\small C_4H_{10}$ there is absolutely no availability of lone pair on Carbon, and of course hydrocarbons do not contain any lone pair

coming to $\small SiBr_4$ and $\small AlCl_3$ both are lewis acids, as they can accept electrons from others

finally your answer is $\small H_2O$ , there are two lone pairs available on central oxygen atom thus it can donate it, so it becomes lewis base.

Answer 2

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