(a) Name three acids used in the laboratory.
(b) Name one indicator that turns red on adding a base.
(c) Name the reaction when an acid is mixed with a base.
(d) Write the name of two indicators that occur naturally.
(e) Name three types of salts. Give one example of each type of salt.
Assertion: Phenolphthalein is an acid-base indicator. Reason: In an acid-base titration, this indicator is used.