When zinc metal is treated with a dilute solution of a strong acid,

(d) AgNO3 solution and copper metal

(c) Food cans are coated with tin and not with zinc because zinc is more reactive than tin.

When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas Metal + Dilute acid → Salt + Hydrogen Reaction between Iron and H2SO4: Fe + H2SO4 → FeSO4 +...

(a) When dilute sulphuric acid is poured on a copper plate, there will be evolution of hydrogen gas along with the formation of blue color crystals of copper sulphate.  CuSO4 +...

Zinc is above hydrogen rvhereas copper is below hydrogen in the activity series of metals. That is why zinc displaces hydrogen from dilute hydrochloric acid, while copper does not.    ...

The gas that extinguishes a burning candle is carbon dioxide. It is formed by the action of dilute hydrochloric acid on a metal carbonate or metal hydrogen carbonate and produces...

Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid because zinc is more reactive than hydrogen. However, copper does not liberate hydrogen gas when reacted with dilute hydrochloric acid...

(D) It smells like vinegar and turns blue litmus red.

When the colourless gas was tested with a burning matchstick, the matchstick extinguished and the gas burnt with a pop sound. This is because when zinc granules are added to...

(i) With dil. H2SO4 : H2 gas is evolved. Zn + H2SO4 → ZnSO4 + H2↑ ii) With dilute HCl : H2 gas is evolved. Zn + HCl → ZnCl2 + H2 ↑ (iii)...