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Bases

What is the d...

Question

What is the difference between red and blue litmus paper?

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Solution

Red litmus paper does not show any colour change when tested with acids, but changes to blue colour when tested with base. On the other hand, blue litmus paper does not show any colour change with bases, but changes to red colour when tested with acid.

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Q. What do we observe on pouring acetic acid on red blue litmus papers ?
(a) Red litmus remains red and blue litmus turns red.
(b) Red litmus turns blue and blue litmus remains blue.
(c) Red litmus turns blue and blue litmus turns red.
(d) Red litmus becomes colourless and blue litmus remains blue.

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