Q: Calcium hydroxide and calcium carbonate are effective in neutralizing the effects of what on lakes?


Read this paragraph and choose the correct option from the provided answers:

Calcium hydroxide and calcium carbonate are effective in neutralizing the effects of acid rain on lakes. Suggest other compounds that might be effective in treating lakes. Give a plausible reason to explain why Ca(OH)2 and CaCO3 are used. ♦ Approximately 95% of the chlorine produced industrially comes from the electrolysis of sodium chloride solutions (brine): NaCl(aq) + H2O(l) → Cl2(g) + H2(g) + NaOH(aq) Chlorine is a respiratory irritant whose presence is easily detected by its penetrating odor and greenishyellow color. One use for the chlorine produced is in the manufacture of hydrochloric acid.

 Choices:

- oil rain

- ozone rain

- dioxide rain

- acid rain


A:
acid rain