Question

For the verification of the law of conservation of mass in a chemical reaction, four students A,B,C and D performed the following reactions. A : Added lime stone to dil. hydrochloric acid. B : Heated lead nitrate (Solid) in a text tube . C : Dipped Mg ribbon in Copper sulphate solution. D : Added copper sulphate solution to sodium carbonate solution. The Student who is likely to obtain the best result is

Answer 1

Answer:

Student D

will obtain best result because the reaction is completed immediately

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