two heterogeneous Identify the set(s) which contain(s) atleast two heterogeneous mixtures.
(1) Tincture of iodine, smoke, soda water, sponge
(2) Milk, milk of magnesia, mud, milky glass
(3) Milky glass, copper sulphate solution, air, salt solution
(4) Soda water, fog, tincture of iodine, milk
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Answer:
D 4
Explanation:
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