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Answer 1
The strip shown below is a pH paper. ph paper is used for measuring pH of a substance.
Answer 2
If pH of a substance is less than 7 then it is acidic.
If pH of a substance is more than 7 then it is basic.
If pH of a substance is equal to 7 then it is neutral.
Answer 3
(please refer to the image for the answer)
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mukeshdhami:
can you give once again photo of pH value of substance , because which you have given photo that is blur
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