A) a-butter, b-sulphuric acid, c-sodium hydroxide, d-green, e-butter
B) a-milk, b-sodium hydroxide, c-copper sulphate, d-violet, e-milk
C) a-milk, b-sodium chloride, c-sodium hydroxide, d- blue, e- milk
D) a- potato, b-sodium hydroxide, c-iodine, d- red, e- potato
E) None of these
Correct Answer: B
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