Search any question & find its solution
Question:
Answered & Verified by Expert
Match the following methods for treating hardness of water with their corresponding reagents used.
\begin{array}{|c|c|c|}
\hline List-I & & List II \\
\hline A. Treatment with washing soda & \mathrm{I}. & \mathrm{Ca}(\mathrm{OH})_2 \\
\hline B. Calgon's method & II. & \mathrm{Na}_2 \mathrm{CO}_3 \\
\hline C. Clark's method & III & \mathrm{NaAlSiO}_4 \\
\hline D. Zeolite/permutit process & IV & \mathrm{Na}_6 \mathrm{P}_6 \mathrm{O}_{18} \\
\hline
\end{array}
The correct match is
$\begin{array}{llllllll}\text { A } & \text { B } & \text { C } & \text { D } & \text { A } & \text { B } & \text { C } & \text { D }\end{array}$
Options:
\begin{array}{|c|c|c|}
\hline List-I & & List II \\
\hline A. Treatment with washing soda & \mathrm{I}. & \mathrm{Ca}(\mathrm{OH})_2 \\
\hline B. Calgon's method & II. & \mathrm{Na}_2 \mathrm{CO}_3 \\
\hline C. Clark's method & III & \mathrm{NaAlSiO}_4 \\
\hline D. Zeolite/permutit process & IV & \mathrm{Na}_6 \mathrm{P}_6 \mathrm{O}_{18} \\
\hline
\end{array}
The correct match is
$\begin{array}{llllllll}\text { A } & \text { B } & \text { C } & \text { D } & \text { A } & \text { B } & \text { C } & \text { D }\end{array}$
Solution:
2974 Upvotes
Verified Answer
The correct answer is:
॥ IV IV I III
No solution. Refer to answer key.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.