Question

#42 Classify each of the following as a Lewis acid or a Lewis base.

Drag the appropriate items to their respective bins.

View Available Hint(s)

I− CH3OH Mn2+ NO2 (CH3)3N SiCl4 H− Lewis acids Lewis bases

Submit

Answer 1

A lewis acid is considered as the one which accepts electron pair. Therefor the species having positive charge or electron deficiency will act as lewis acid. Lewis Acid = Mn⁺², SiCl₄, NO₂

A lewis base is considered as the one which can donate electron pair. Therefore the species having negative charge or lone pair of electrons will act as lewis base.Lewis base= (CH₃)₃N, I^-, H^-, CH3OH.

However it is to be considerd that methanol act as a bronsted acid due to acidic character of alcohols but when there is the presence of a strong proton donor, methanol accepts a proton by donating its electron pair present on oxygen atom as in the case of dehydration of alcohols. thus acting as a lewis base.