JEE Main · 2023 · 13 Apr 2023 · Shift 1 · Hydrogen

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Given below are two statements:

Statement-I Permutit process is more efficient compared to the synthetic resin method for the softening of water.
Statement-II: Synthetic resin method results in the formation of soluble sodium salts.

In the light of the above statements, choose the most appropriate answer from the options given below:
  1. (A)Both the Statements I and II are correct
  2. (B)Statement I is correct but Statement II is incorrect
  3. (C)Statement I is incorrect but Statement II is correct
  4. (D)Both the Statements I and II are incorrect✓ Correct

Answer: (D)

Solution

Both statements are incorrect. The synthetic resin (ion exchange) method is MORE efficient than the Permutit (zeolite) process for water softening, making Statement I false. Statement II is also false because the synthetic resin method exchanges hardness-causing ions for H⁺ or OH⁻ ions (not sodium salts in modern demineralization). Therefore, both statements are incorrect.

JEE Main · 2023 · 13 Apr 2023 · Shift 1 · Single correct option

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