In the following reactions, ZnO is respectively acting as a/an :
(a) ZnO + Na2O → Na2ZnO2
(b) ZnO + CO2 → ZnCO3
acid and acid
acid and base
base and acid
base and base
As learned in concept
Oxidation -
It is defined as the addition of oxygen / electronegative element to a substance or removal of hydrogen / electropositive element from a substance.
- wherein
e.g.
Reduction -
Removal of Oxygen / electronegative element from a substance of addition of hydrogen / electropositive element to substance.
- wherein
e.g.
Zno is an amphoteric oxide i.e it can act both as an acid as well as a base in the given reactions.
In the given reaction:
We have
Clearlt Zn accepts a pair of electrons, thus acting as lewis base.
So answer is acid and base
Option 1)
acid and acid
This is incorrect option
Option 2)
acid and base
THis is a correct option
Option 3)
base and acid
This is incorrect option
Option 4)
base and base
This is incorrect option
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