Q38 / 160 · AP EAMCET 2022 (06 Jul Shift 2) · Chemistry
Match the following.
\begin{array}{|c|c|c|c|}
\hline & List I (Substance) & & List II (Use) \\
\hline (A) & Methanoic acid & (i) & Textile \\
\hline (B) & Ethanoic acid & (ii) & Polymer \\
\hline (C) & Hexanedioic acid & (iii) & Food preservative \\
\hline (D) & Sodium benzoate & (iv) & Vinegar \\
\hline
\end{array}
- Correct answerAA-(i), B-(iv), C-(ii), D-(iii)
- BA-(ii), B-(iv), C-(i), D-(iii)
- CA-(iii), B-(iv), C-(ii), D-(i)
- DA-(iv), B-(iii), C-(ii), D-(i)
Solution
\begin{array}{|c|c|c|}
\hline List I (Substance) & List II (Use) & Explanation \\
\hline (A) Methanoic acid & (i) Textile & \begin{array}{l}
It is used as pH regulator in neutralsing the alkaline environment in various \\
processes of textile industry.
\end{array} \\
\hline (B) Ethanoic acid & (iv) Vineger & Vinegar is 4-7 \% solution of ethanoic or acetic acid. \\
\hline \begin{array}{l}
(C) Hexanedioic \\
acid
\end{array} & (ii) Polymer & \begin{array}{l}
Hexanedioic acid or adipic acid is used as precursor for the production of \\
mylon.
\end{array} \\
\hline \begin{array}{l}
(D) Sodium, \\
berzoate
\end{array} & \begin{array}{l}
(iii) Food \\
preservative
\end{array} & Sodium benzoute prevents spoilage of food from harmful bacteria etc. \\
\hline
\end{array}
Hence, the correct answer is option: 'A'.