What is the valency of N in following compounds.
`N_2O_3`

Explanation

To determine the valency of nitrogen (N) in the compound \( N_2O_3 \), we can follow these steps:

### Step 1: Identify the elements and their oxidation states
In the compound \( N_2O_3 \), we have two elements: nitrogen (N) and oxygen (O). Oxygen typically has a valency of -2 in compounds.

### Step 2: Write the formula and assign known valencies
The formula \( N_2O_3 \) indicates that there are 2 nitrogen atoms and 3 oxygen atoms. We know that the valency of oxygen is -2.

...