Question

the name for the acid h₂so₃ is
sulfuric acid
hydrosulfuric acid
sulfurite acid
sulfurous acid
hydrosulfurous acid
question 4 1 pts
the compound pi₃ is named
potassium iodide
monophosphorus triiodide
monophosphorus iodide
phosphorus triiodide
phosphorus iodide

Explanation:

For the acid $\mathrm{H_2SO_3}$, acids with the -ous suffix are those with a lower oxidation - state of the central atom compared to -ic acids. Sulfurous acid is the name for $\mathrm{H_2SO_3}$. For $\mathrm{PI_3}$, in binary covalent compounds, the first non - metal is named as the element, and the second non - metal has an -ide ending with a prefix indicating the number of atoms. So $\mathrm{PI_3}$ is phosphorus triiodide.

Answer:

1. D. sulfurous acid
2. D. phosphorus triiodide