Correct answer: acidic
Explanation:
The oxides of non-metals are generally acidic in nature. When dissolved in water, they form acids.
Examples:
- \( \text{CO}_2 + \text{H}_2\text{O} \rightarrow \text{H}_2\text{CO}_3 \) (carbonic acid)
- \( \text{SO}_2 + \text{H}_2\text{O} \rightarrow \text{H}_2\text{SO}_3 \) (sulphurous acid)
These acidic oxides react with bases to form salt and water.
Hence, the correct answer is: acidic.
Match the amino acid given in List-I with their one-letter code given in List-II
\[ \begin{array}{|l|l|} \hline \textbf{Name of amino acid} & \textbf{One-letter code} \\ \hline (A) \; \text{Lysine} & (I) \; W \\ \hline (B) \; \text{Tryptophan} & (II) \; Q \\ \hline (C) \; \text{Tyrosine} & (III) \; K \\ \hline (D) \; \text{Glutamine} & (IV) \; Y \\ \hline \end{array} \]