You're absolutely right! While the vast majority of inorganic compounds do not contain carbon, there are a few notable exceptions. Here are three:

1. Carbonates (CO3^2-)

- These are salts containing the carbonate anion (CO3^2-). Examples include:

- Calcium carbonate (CaCO3) - found in limestone and seashells

- Sodium carbonate (Na2CO3) - used in detergents and glassmaking

2. Bicarbonates (HCO3-)

- These are salts containing the bicarbonate anion (HCO3-) - also known as hydrogen carbonate. Examples include:

- Sodium bicarbonate (NaHCO3) - commonly known as baking soda

- Potassium bicarbonate (KHCO3) - used as a leavening agent and dietary supplement

3. Cyanides (CN-)

- These are salts containing the cyanide anion (CN-). Cyanides are highly toxic and should be handled with extreme care. Examples include:

- Potassium cyanide (KCN) - used in gold mining and electroplating

- Hydrogen cyanide (HCN) - a colorless, highly poisonous gas

While these compounds contain carbon, they are generally considered inorganic because they don't form the complex structures typical of organic compounds.