Distinguish between:
(a) a common acid-base indicator and a universal indicator,
(b) the acidity of bases and basicity of acids,
(c) acid and alkali (other than indicators).
Which of the following can be used as an acid-base indicator in the laboratory?
(a) What is an acid-base indicator? Name the three common indicators used in chemistry laboratory.
(b) Name an acid-base indicator extracted from lichen.
(c) What colour does the methyl orange turn to when put in an acidic solution ?
(b) What colour does the methyl orange turn to when put in an acidic solution? [3 Marks]
Which of the following are used as an indicator for identifying acids and bases: