To determine which compound is inorganic, we need to recall the definition of inorganic compounds. Inorganic compounds typically do not contain carbon-hydrogen (C-H) bonds, which are a hallmark of organic compounds. Let’s analyze each given compound one by one:
A. [tex]\( C_6H_{12}O_6 \)[/tex] (Glucose)
- This compound contains carbon (C), hydrogen (H), and oxygen (O).
- It is a carbohydrate and is clearly an organic compound due to its C-H bonds.
B. [tex]\( KH_2PO_4 \)[/tex] (Potassium Dihydrogen Phosphate)
- This compound contains potassium (K), hydrogen (H), phosphorus (P), and oxygen (O).
- There are no carbon (C) atoms in this compound, hence no C-H bonds.
- This compound is inorganic.
C. [tex]\( CH_3COOH \)[/tex] (Acetic Acid)
- This compound contains carbon (C), hydrogen (H), and oxygen (O).
- It has C-H bonds, making it an organic acid.
D. [tex]\( C_2H_6 \)[/tex] (Ethane)
- This compound contains only carbon (C) and hydrogen (H).
- It has multiple C-H bonds, making it an organic compound.
E. [tex]\( C_2H_5OH \)[/tex] (Ethanol)
- This compound contains carbon (C), hydrogen (H), and oxygen (O).
- It includes C-H bonds, categorizing it as an organic alcohol.
After this analysis, we can conclude that the inorganic compound is:
B. [tex]\( KH_2PO_4 \)[/tex]