Question

Identify the types of reaction
i)CH4+2O2➡️CO2+H2O
ii)Pb(NO3)2+2KI➡️PbI2+KNO3
iii)CaO+H2O➡️Ca(OH)2
iv)CuSO4+Zn➡️ZnSO4+Cu

Answer 1

1) exothermic reaction
2) precipitation reaction or double displacement reaction
3) Combination reaction
4) Displacement reaction

Answer 2

heya your answer!!!!
1.it is combustion reaction
2.precipitation reaction or double displacement
3.Exothermic combustion reaction.
4.displacement reaction