Given below are two statements :

Statement-I: Ion exchange is an example of tertiary waste water treatment process.

Statement-II: Ion exchange is used for the removal of residual suspended solids.

In the light of the above statements, choose the correct answer from the options given below:

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UGC NET Paper 1: Held on 28th Feb 2023 Shift 1
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  1. Both Statement I and Statement II are true.
  2. Both Statement I and Statement II are false.
  3. Statement I is true but Statement II is false.
  4. Statement I is false but Statement II is true.

Answer (Detailed Solution Below)

Option 3 : Statement I is true but Statement II is false.
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UGC NET Paper 1: Held on 21st August 2024 Shift 1
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Detailed Solution

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The correct answer is Statement I is true but Statement II is false.
Important Points

Statement I: Ion exchange is an example of tertiary wastewater treatment process.

  • This is true.
  • Ion exchange is often used in tertiary treatment of wastewater to remove specific inorganic compounds and heavy metals.
  • It is also used in softening water by replacing calcium and magnesium ions with sodium ions.

Statement II: Ion exchange is used for the removal of residual suspended solids.

  • This is false.
  • Ion exchange is not typically used for the removal of suspended solids. Rather, it's a process used to remove and replace specific ions in a solution.
  • Suspended solids are usually removed in primary or secondary treatment processes through physical methods such as sedimentation or filtration.

Given this analysis, it seems that Statement-I is true, while Statement-II is false. Please note that different sources may categorize water treatment processes slightly differently, but the information provided here is based on a general understanding of these processes

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