Lemons is the most acid of these 3 fruits. It is high in citric acid.
Answer:
electrolysis of brine
Explanation:
Rock salt deposits are usually mined; occasionally water is pumped down, and brine which contain 25 percent of sodium chloride is found
so d brine is electrolyzed to produce chlorine
Popcorn and salt as the mixtures are substances which are formed by mixing other substances