Q15 / 90 · JEE Main 2023 (25 Jan Shift 2) · Chemistry

Given below are two statements:-

Statement I:- In froth floatation method a rotating paddle agitates the mixture to drive air out of it.

Statement II:- Iron pyrites are generally avoided for extraction of iron due to environmental reasons.

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

  • A
    Both Statement I and Statement II are true
  • Correct answer
    B
    Statement I is false but Statement II is true
  • C
    Statement I is true but Statement II is false
  • D
    Both Statement I and Statement II are false

Solution

The rotating paddle in the froth flotation process violently agitates the suspension of powdered ore in water, as well as the collectors and froth stabilisers, generating frothing.  Iron pyrites are generally avoided for extraction of iron due to environmental reasons.

Hence, the correct answer is option: 'B'.

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