State whether the following compounds are inorganic or organic :
(i) caustic soda (ii) sugar
(iii) nitric acid (iv) blue vitriol
(v) vegetable ghee (vi) mustard oil (vii) baking soda.

Explanation

To determine whether the given compounds are inorganic or organic, we need to understand the definitions of organic and inorganic compounds. Organic compounds typically contain carbon and are associated with living organisms, while inorganic compounds generally do not contain carbon.

Let's analyze each compound one by one:

1. **Caustic Soda (NaOH)**:
- **Analysis**: Caustic soda is composed of sodium (Na), oxygen (O), and hydrogen (H). It does not contain carbon.
- **Conclusion**: Inorganic.

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