Dry raisins were soaked in water for 2 hours to determine the percentage of water absorbed by raisins. Before final weighing of swollen raisins, the extra water left on the surface of soaked raisins was removed by:(a) Dry cotton wool (b) Hot air blower (c) Gently rubbing with cotton cloth (d) Filter paper

(d) Filter paper

Explanation

In order to remove the extra water left on the surface of soaked raisins was removed by filter paper.

 Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or airflow to absorb the liquid. Filter paper has various properties, the important one is to separate fine solid particles from liquids or gases.

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Updated on: 10-Oct-2022

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