To determine which compound is inorganic among the given options, we need to understand the difference between organic and inorganic compounds.
Organic compounds typically contain carbon atoms bonded to hydrogen atoms, often along with other elements such as oxygen, nitrogen, and more. They are primarily associated with living organisms.
Inorganic compounds generally do not have carbon-hydrogen (C-H) bonds, although they can contain carbon (e.g., in carbonates and cyanides).
Let's analyze each compound:
A. [tex]\( \mathbf{C_{6}H_{12}O_{6}} \)[/tex] (Glucose)
- Contains carbon-hydrogen bonds.
- It is an organic compound.
B. [tex]\( \mathbf{KH_{2}PO_{4}} \)[/tex] (Potassium dihydrogen phosphate)
- Does not contain carbon-hydrogen bonds.
- It is an inorganic compound.
C. [tex]\( \mathbf{CH_{3}COOH} \)[/tex] (Acetic acid)
- Contains carbon-hydrogen bonds.
- It is an organic compound.
D. [tex]\( \mathbf{C_{2}H_{6}} \)[/tex] (Ethane)
- Contains carbon-hydrogen bonds.
- It is an organic compound.
E. [tex]\( \mathbf{C_{2}H_{5}OH} \)[/tex] (Ethanol)
- Contains carbon-hydrogen bonds.
- It is an organic compound.
Based on the definitions and analysis above:
- Compounds A, C, D, and E contain carbon-hydrogen bonds and are organic compounds.
- Compound B does not contain carbon-hydrogen bonds and is therefore an inorganic compound.
Hence, the correct answer is:
B. [tex]\( \mathbf{KH_{2}PO_{4}} \)[/tex].
