Litmus papers

Litmus papers

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Multiple Choice

Blue litmus paper and red litmus paper do not change colour in substance X.

Which of the following might be substance X?

• lime juice

• salt

• detergent

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Multiple Choice

Red litmus paper turns blue in substance Y.

Which of the following might be substance Y?

• soap water

• water

• lime juice

Fill in the Blanks

Multiple Choice

Blue litmus paper turns red in substance Z.

Which of the following might be substance Z?

• shampoo

• water

• vinegar