Mention whetherthefollowing are elements, compounds or mixtures :
(i) glass, (ii) german silver
(iii) llimestone, (iv) pure gold
(v) diamond, (vi) glucose
(vii) salt solution, (viii) helium
(ix) oxygen, (x) water

Explanation

To determine whether the given substances are elements, compounds, or mixtures, we can refer to the definitions of each category:

1. **Elements**: Substances that cannot be decomposed into simpler substances.
2. **Compounds**: Substances made up of two or more elements that are chemically combined.
3. **Mixtures**: Combinations of two or more substances that are not chemically combined.

Now, let's analyze each substance:

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