Which of the following is an inorganic compound?

glucose (C6H12O6)

ammonia (NH3)

vinegar (C2H4O2)

butane (C4H10)

NH3 is an inorganic compound. All of the others are organic.

To determine which of the following compounds is inorganic, we need to understand the difference between organic and inorganic compounds. Organic compounds contain carbon, while inorganic compounds do not.

Let's analyze each compound:

1. Glucose (C6H12O6) - Glucose is an organic compound because it contains carbon (C).

2. Ammonia (NH3) - Ammonia is an inorganic compound because it does not contain carbon (C). Ammonia consists of nitrogen (N) and hydrogen (H).

3. Vinegar (C2H4O2) - Vinegar is an organic compound because it contains carbon (C).

4. Butane (C4H10) - Butane is an organic compound because it contains carbon (C). Butane is an alkane consisting of carbon and hydrogen atoms.

Based on the analysis, the inorganic compound among the given options is ammonia (NH3).