7. A sample of soil is mixed with water and allowed to settle. The
clear supernatant solution turns the pH paper yellowish-orange.
Which of the following would change the colour of this pH paper to
greenish-blue?
(a) Lemon juice
(b) Vinegar
(c) Common salt
(d) An antacid GIVEREASON
Answers
Answered by
1
Answer:
(a) lemon juice is the correct answer
Answered by
1
Answer:
Antacids
Explanation:
work by counteracting (neutralising) the acid in your stomach. They do this because the chemicals in antacids are bases (alkalis) which are the opposite of acids.
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