Question

20 (iv) A student dropped zinc discs in copper sulphate solution to carry out
reaction. On weighing the discs and solution separately after some time, he fou
that the mass of zinc discs had increased, but the mass of the solution had decrease
Which of the following inferences is correct regarding the given experiment?
(a) Reaction between zinc discs and copper sulphate solution was incompler
(b) Atomic mass of zinc is greater than that of copper.
(c) There was an error in weighing the contents.
(d) Law of conservation of mass was obeyed.​

Answer 1

Answer:

law of conservation of mass is obeyed