Multiple Choice
In the reaction CaO(s) + SO2(g) CaSO3(s) ,
A) O2- acts as a Lewis base,and SO2 acts as a Lewis acid.
B) Ca2+ acts as a Lewis base,and SO42- acts as a Lewis acid.
C) SO32- acts as a Lewis base,and SO2 acts as a Lewis acid.
D) SO2 acts as a Lewis base,and O2- acts as a Lewis acid.
E) SO2 acts as a Lewis base,and Ca2+ acts as a Lewis acid.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Amphoteric oxides are compounds that exhibit both
Q16: A solution is prepared by adding 0.10
Q24: Which represents a weak base B with
Q25: What is [OH<sup>-</sup>] for a solution at
Q26: K<sub>w</sub> = 1.0 × 10<sup>-</sup><sup>14</sup> under all
Q28: Below is a representation of an aqueous
Q33: The acid dissociation constant Ka equals 1.26
Q40: Which is the strongest acid?<br>A) HBrO<sub>3</sub><br>B) HFO<sub>3</sub><br>C)
Q72: What is the pH of a 0.050
Q73: The substance (CH<sub>3</sub>CH<sub>2</sub>)<sub>2</sub>NH is considered to be<br>A)