Question

Filter paper has very small pores in it. Which of the following substance(s) will be retained on it when passed through it in their solution form (dissolved in water)? (More than one correct answer)

• A. salt
• B. sand
• C. sugar
• D. tea leaves

Answer 1

Answer: (B), (D)

The correct options are
B sand
D tea leaves

Filter paper retains only those substances whose particle size is larger than the small pores of filter paper.
Salt and sugar have particle size even smaller than that of the pore size of filter paper. So they will pass through it, dissolved in their solution form.
The particle size of sand and tea leaves is large enough, that when we pass their solution through filter paper, they are retained on it.