Question

Why should one read the lower meniscus in the case of colourless and transparent
solutions and the upper meniscus for solutions of dark colour?​

Answer 1

Answer:

The lower meniscus must be read while measuring the volume of colourless or transparent liquids but the upper meniscus while using colured ones because the phase boundary in the colourless liquid is clearly visible so it is easy to read it.

Explanation:

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