NEET 2022

NEET 2022 Chemistry question on Surface Chemistry

Given below are two statements
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order
Al3+>Ba2+>Na+\text{Al}^{3+} > \text{Ba}^{2+} > \text{Na}^+
Statement II:
In the coagulation of a positive sol, the flocculating power of the three given salts is in the order
NaCl>Na2SO4>Na3PO4\text{NaCl} > \text{Na}_2\text{SO}_4 > \text{Na}_3\text{PO}_4
In the light of the above statements, choose the most appropriate answer from the options given below
  1. A.
    Both Statement I and Statement II are correct.
  2. B.
    Both Statement I and Statement II are incorrect.
  3. C.
    Statement I is correct but Statement II is incorrect.
  4. D.
    Statement I is incorrect but Statement II is correct.
Show answer

Correct option: C

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