Question 1
The
lower the pH of a liquid
◦ the more acidic it is.
◦ the more basic (alkaline) it is.
◦ the more neutral it is.
◦ None of these-pH is not a measure of acidity, it is a measure of chemical reactivity.
Question 2
The main ingredient in photochemical smog is
◦ ozone.
◦ particulate matter.
◦ nitrogen dioxide.
◦ carbon monoxide.