We’re being asked which of the given species is a Lewis base.
Let’s first define a Lewis acid and a Lewis base.
Based on the Lewis definition:
Lewis acid is an electron pair acceptor.
Some characteristics of a Lewis acid:
• When hydrogen is connected to an electronegative element such as P, O, N, S or halogens
▪ hydrogen gains a partially positive charge → makes hydrogen act as a Lewis acid
• Positively charged metal ions
Which of the following could act as a Lewis base?
e. Both (a) and (b) are Lewis bases
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