Question

Identify the incorrect statement.
[1 mark]
O The oxidation state and valency can be the same for an element.
Oxidation state of nitrogen in NH, is -3.
Oxidation state of oxygen in H2O is +2.
The valency of elements first increases, and then decreases on going from left to right across a
period
O​

Answer 1

Answer:

The valency of elements first increases, and then decreases on going from left to right across a  period

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Answer 2

Answer:

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