From the list of characteristics given below, select the five which are relevant to non-metals and their compounds.
Write the letters corresponding to the correct characteristics.
A. Ductile
B. Conduct electricity
C. Brittle
D. Acidic oxides
E. Basic oxides
F. Discharged at anode
G. Discharged at cathode
H. Ionic chlorides
I. Covalent chlorides
J. Reaction with dilute sulphuric acid yields hydrogen.
K. 1, 2 or 3 valence electrons
L. 5, 6 or 7 valence electrons

Explanation

To solve the question of identifying the five characteristics relevant to non-metals and their compounds from the provided list, we will analyze each option step by step.

### Step-by-Step Solution:

1. **A. Ductile**:
- Non-metals are not ductile. Ductility is a property of metals, which can be drawn into wires. Therefore, this characteristic does not apply to non-metals.
- **Conclusion**: Not relevant.

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