Question

which is the following is not a combination reaction
a) caO(s) +H2O(l) --- Ca(OH)2(aq)
b) C (s)+O2(g)---CO2 (g)
c) 2H2(g)+ O2(g) ---2H2O(l)
Zn (s)+CuSO4(aq) --- ZnSO4 (aq) +Cu (s)​

Answer 1

Answer:

option d is the right answer

Explanation:

the reaction b/w Zinc and copper sulphate is a displacement reaction not a combination reaction

Answer 2

Answer:

d) Zn (s) + CuSO4(aq) --- ZnSO4(aq) + Cu (s)

This is not a combination reaction.

Explanation:

This is an example of displacement reaction.