Metal X was placed in lead nitrate solution. A thin layer of lead metal deposits on metal X. Which is more reactive metal X or lead ? State the type of reaction and give an example of this type.

What type of reaction is respiration ? Explain.

K, Na, Ca, Mg, Al, Zn, Fe, Pb, Cu, H, Hg, Ag

Pick an element from the reactivity series given above and write the equations for the the following:

(a) Metal hydroxide on heating forms metal oxide and water vapour.

(b) Metal hydroxide on heating forms metal, oxygen and water vapours.

(c) Metal nitrate decomposes to give two products only.

(d) Metal nitrate on heating forms metal oxide, nitrogen dioxide and oxygen.

(e) Metal nitrate on heating forms metal, nitrogen dioxide and oxygen.

(f) Metal carbonate which is stable to heat.

(g) Metal carbonate which forms metal oxide and carbon dioxide on heating.

(h) The heating effect on bivalent metal hydrogen carbonate.

KI + Cl₂ ⟶ KCl + I₂

(a) Balance the equation given above.

(b) Which type of reaction is it ?

(c) Which element is more reactive ?

(d) What will be the product formed if KCl reacts with I₂ ?