Indicators

Which of the following substance contains Acid?

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Ammonia turns Red litmus to blue, It is________

• Acidic

• Neutral

• Basic

• None of the above

A solution which does not change the colour of any indicator is considered to be _______

A turmeric stain on your shirt turns red on washing with soap and water. Write the reason for this change.

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What is Litmus? Explain how does it help in identifying the chemical nature of a substance?

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What will happen if China rose is dipped in the given two solutions.

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Identify the Synthetic Indicator among the following.

• Turmeric

• China Rose

• Phenolphthalein

• Grape juice

Identify the nature of the solution in the given picture. Also write the name of the indicator used.

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