Question

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2
Ram took some powdered sodium hydroxide in a plate and tested it with the help of dry red
litmus paper.

Answer 1

Answer:

the colour of the litmus paper changes from red to blue as we know that acid changes litmus from blue to red and in base the litmus changes from red to blue . the litmus will not change its colour if the substance is neutral. note that litmus should be moist to check the presence of acid and base