Question

Tom had stains on his glass window. He wanted to remove the stains. SO he took a cleaning liquid and started to clean, But it did not remove the stain. He tested with litmus paper and observed that it turned blue litmus paper red and realised he had picked up the wrong liquid. So he went to the stores and picked up another liquid. This time he checked it with red and as well as with blue litmus paper. His friend Amar told him to check with an indicator called phenolphthalein. He was convinced that this was the right liquid to clean his glass window. It worked A)was the first liquid acid or a base? B)how does litmus paper help him identify? c)what is an indicator D)from the information given whether the second liquid is acidic or basic. e)give two reasons f)what will be the observation with phenolphthalein for? Liquid 1:liquid 2:

Answer 1

Explanation:

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Answer 2

Answer:

Litmus paper is a natural indicator which changes red in acids and blue in bases. Compounds that do not affect the color of litmus papers are described as neutral.When litmus paper turns red then the substance is acid.

Explanation:

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