Match the mixtures in Column I with their method of separation in Column II.
(i) Gram flour mixed with black gram → (d) Sieving; (ii) Chalk powder mixed with water → (e) Filtration; (iii) Corn mixed with potatoes → (a) Handpicking; (iv) Iron powder mixed with sawdust → (b) Magnetic separation; (v) Oil mixed with water → (c) Decantation
Explanation
The chapter explains each separation method: (i) Gram flour and black gram have different particle sizes, so sieving separates them. (ii) Chalk powder is insoluble in water and can be filtered out. (iii) Corn and potatoes differ in size and can be handpicked. (iv) Iron is a magnetic substance attracted to magnets, while sawdust is non-magnetic. (v) Oil forms a separate layer on water and can be separated by decantation.