Question

RIGHT ANSWER WILL BE MARKED BRAINLEAST

Write the chemical reaction where the following changes
are observed.
(a) Gas is evolved (b) Colour change is noticed
(c) Precipitate is formed (d) Physical state is changed​

Answer 1

a) Zn + 2 HCl → ZnCl

2 + H

2 (gas)

b) CuSO4+Fe=FeSO4+Cu

Color changes from blue to light green.

c)Ag+ + Cl- → AgCl↓

d) Expansion of Metal on Heating