Answer the questions on the basis of your understanding of the following passage, table and relat...
Answer the questions on
the basis of your understanding of the following passage, table and related studied concepts:
Indicators are the substance that change their colour or odour when added into an acid or an alkaline solution to indicate the presence of acid or base. By knowing this seema performed an experiment. The solutions A and B, where taken by Seema in a test tubes. She added different indicators in each test tubes. The observations were recorded in the form of table as given below.
1c| Indicators 1c|A 1c1
Litmus Red Blue
Phenophthalein Colourless Pink
Methfyl orange Red Yellow
Name two substance which can be used as olfactory indicator.
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