18.3.2 Oxides as Lewis Acids

Question 1

Which of the following would be true of a compound that functions as a Lewis acid?

Answer 1

It can accept a pair of electrons.

Question 2

Which of the following is a characteristic of Lewis acids?

Answer 2

They have empty orbital or can break a pi bond.

Question 3

In the following reaction, which is a Lewis acid?

CO2 + OH − → HCO3−

Answer 3

CO2

Question 4

In the following reaction, which is the base?

SO3 + OH − → HSO4−

Answer 4

OH −

Question 5

Which of the following is a nucleophile?

Answer 5

Lewis base

Question 6

In the following reaction, which is the Lewis base?

CO2 + OH − → HCO3−

Answer 6

OH −

Question 7

In the following reaction, which is a Lewis acid?

SO3 + OH − → HSO4−

Answer 7

SO3

Question 8

What happens when a carbon dioxide molecule reacts with a hydroxide ion?

Answer 8

A pi bond between carbon and oxygen in carbon dioxide is broken.

Question 9

Which of the following can allow a compound to act as a Lewis acid?

Answer 9

All of these.

Question 10

Why is a Lewis base called a nucleophile?

Answer 10

Because it “likes” to have a positive charge.