Question

D. Why is paper moistened before
filtration?
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Answer 1

Answer:

• It is used to separate fine substances from liquids or air. It is used in science labs to remove solids from liquids.

• The filter paper is moistened so that is stick to the funnel which doesn't let the air pass through the passage, which increases the speed of filtration.

Answer 2

Answer:

This is so that it stick to the funnel which doesn't let the air pass through the passage which increases the speed of filtration.