Question

4. Which of the following is a not a decomposition
reaction?
(a) 2Al2O3(l)....electricity....4Al(l)+3O2 (g)
(b)2NaNO3 (s)..... 2NaNO2(s)+O2 (g)
(c)2KnO4(s)....K2MnO4(s)+MnO2(s)
+O2(g)
(d)Zn(s)+H2SO4(aq)....ZnSO4(aq)+H2(g)
​

Answer 1

d)Zn+H2SO4..........ZnSO4+H2

Answer 2

Answer:

the answer is option d

Explanation:

decomposition reaction:

AB-------A+B

so in all others this format is there but in d it is not there... option d is a single displacement reaction