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1. Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution? Explain. 2. Factory waste is neutralised before disposing it into the water bodies. Why? |
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Answer» 1. Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution? Explain. 2. Factory waste is neutralised before disposing it into the water bodies. Why? |
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