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

Answer 1

Answer:

b.. option is not correct..