Question

Zn (s) + H2 SO4 (aq) → Zn SO4 (aq) + H2 (g) is an example of-

A. change of colour
B. evolution of gas
C. precipitation reaction
D. endothermic reaction

pls anwer fast

Answer 1

Zn (s) + H2 SO4 (aq) → Zn SO4 (aq) + H2 (g) is an example of-

B. evolution of gas

As the biproduct is Hydrogen gas