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.
Zn + HCl ------->ZnCl2 + H2 Cu + HCI ------> No reaction
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 +...
The following reaction takes place:
Fe + 2HCl -----> FeCl2 + H2
Iron Hydrochloric acid lron chloride Hydrogen
Thus, hydrogen and iron chloride are produced. Therefore, (a) is the correct answer.
(i) The temperature of the reaction mixture rises when aluminium is added because it is an exothernic reaction.
(ii) Reaction of sodium metal is found to be highly explosive because it...
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...
When zinc reacts with dilute solution of strong acid, it forms salt and hydrogen gas is evolved.
Zn + 2HCl ------> 2nCl2 + H2
When a burning splinter is brought near the mouth...
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...
(a) 2Cu(NO3)2 → 2CuO+ 4NO2+O2
(b) The brown gas 'X' has to be nitrogen dioxide.
(c) This type of reaction falls under the category of Decomposition reactions.
(d) The pH of the aqueous...
