Question

Which of the following is not a physical change?
(a) Glowing of a fluorescent tube (b) Burning of a magnesium wire
(c) Adding water to anhydrous copper sulphate
(d) Dissolving sulphur in carbon disulphide​

Answer 1

Answer:

I Think the answer will be option no. (d)

Answer 2

Answer:

your correct answer is

option a) glowing of a fluorescent tube.

1. because there is no change in the tube
2. this change is reversible
3. this change is temporary
4. No new substances are formed

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