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How will you wash test- tubes and conical flasks in the laboratory? |
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Answer» A little quantity of washing soda is put inside the test tubes and conical flasks. Some lukewarm water is added to it. The inside of the test-tubes and conical flasks are brushed carefully using a brush. Then they are washed with running water. Finally they are rinsed with water and kept inverted in the test tube stands and allowed to dry. |
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