Question

in experiment for determining the percentage of water absorbed by raisins, we do the final weighing of the raisins after keeping them dipped in water for about one hour. for the accuracy of the results, the extra water from the surface of the soaked raisins is removed by
1 rubbing with a cotton cloth
2 hot air blower
3 dry cotton wool
4 filter paper

Answer 1

for the accuracy we can use dry cotton wool

Answer 2

Answer is 4 option filter paper.
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