question_answer

Which of the following statements is true?

i. Grains are obtained from stalks by threshing.

ii. A mixture of oil and water can be separated by filtration.

iii. Water can be separated from salt by evaporation.

iv. A mixture of iron filings and rice flour can be separated by magnet.

A) i, ii, iii only

B) i, ii, iii, iv

C) ii, iii, iv only

D) i, iii and iv

E) None of these