Question

B) Complete the following chart.
Indicators in Laboratory​

Answer 1

Answer:

methaly orange, phenophelin,litys papers

Answer 2

Indicators which are used in laboratory are, methyl orange, phenolphthalein, litmus paper etc.

• The identification of the nature of a substance (acidic, basic or neutral) is surely one of the most important activities in any laboratory.
• Now, this kind of identification process can be easily done by different types of indicators.
• These indicators change its colours according to the nature of the surrounding's substance.
• The popular indicators are - litmus paper, phenolphthalein, methyl orange etc.
• Colour change example - litmus paper becomes red in the acidic solution and blue in the basic solution.