(a) What is an acid-base indicator? Name the three common indicators used in chemistry laboratory.
(b) What colour does the methyl orange turn to when put in an acidic solution?
[3 Marks]
(a) What is an acid-base indicator? Name the three common indicators used in chemistry laboratory.
(b) What colour does the methyl orange turn to when put in an acidic solution?
[3 Marks]
a) Acid base indicators are substances that determines whether a solution is an acid or a base primarily based on change in their characteristic colour or odour.
[1 Mark]
The three common indicators are:
i. Litmus paper
ii. Methyl orange
iii. Phenolphthalein
[1 Mark]
b) Methyl orange changes its colour from orange to red when added to an acidic solution.
[1 Mark]
a) Acid base indicators are substances that determines whether a solution is an acid or a base primarily based on change in their characteristic colour or odour.
[1 Mark]
The three common indicators are:
i. Litmus paper
ii. Methyl orange
iii. Phenolphthalein
[1 Mark]
b) Methyl orange changes its colour from orange to red when added to an acidic solution.
[1 Mark]
