1. What is corrosion? Do gold ornaments corrode? Justify.
Ans.
i. The slow process of decay or distinction ions of a metal due to the effect of air, moisture, acids, alkalies, or other chemicals on it is called corrosion.
ii. Ordinarily, gold ornaments do not get corroded.
iii. Gold is one of the least reactive metals. It does not react with air, moisture, sweat, or ordinary pollutants in air or water. Hence, it does not get corroded.