A) X: milk, chalk powder, sugar, common salt; Y: flour, sand, washing soda, alum
B) X: alum, copper sulphate, sugar, sand; Y: flour, washing soda, plastic, wax
C) X: wax, sugar, alcohol, alum; Y: milk, sand, glass, plastic
D) X: milk, sugar, common salt, alcohol; Y: sand, wax, glass, plastic
E) None of these
Correct Answer: D
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