Question

give one explain each of displacement decomposition and combination reaction with explanation.

Answer 1

displacement rxn: in which a more reactive metal displaces a less reactive metal
eg: cuso4 + zn gives znso4 + cu

decomposition rxn: in which a compound splits up into 2 or more simpler substances .
eg: CaCO3 on heating gives CaO + CO2

combination rxn: in which 2 or more substances combine to form a single substance
eg: Mg + O2 gives MgO