Question 2

When a freon has lost a chlorine radical, this does great damage to the ozone layer. But there are ways that the chlorine radical can be neutralized temporarily (a layer) or permanently (a sink). What sinks for chlorine radicals exist? Please indicate which option(s) are correct.

A: Hydrochloric acid (HCI) is a sink for chlorine radicals if the substance becomes trapped in polar stratospheric clouds

B: Hydrochloric acid (HCI) is a sink for chlorine radicals if the substance is dissolved in rainwater

C: Chlorine nitrate (CIONO2) is a sink for both chlorine radicals and nitrogen dioxide