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JEE Main 20205 SeptemberEvening Shift
Exam
JEE Main
Year
2020
Date
5 September
Shift
Evening Shift
Subject
Chemistry
Chapter
Hydrogen

JEE Main 2020 · 5 September · Evening Shift · Chemistry · Hydrogen

The one that is NOT suitable for the removal of permanent hardness...

The one that is NOT suitable for the removal of permanent hardness of water is :

Options

  1. AClark's method
  2. BIon–exchange method
  3. CCalgon's method
  4. DTreatment with sodium carbonate

Correct answer

A. Clark's method

Step-by-step solution

Clark's Method is used to remove temporary hardness by using lime water (or) Ca(OH)2Ca ( OH{)}_{2}
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