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In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

A: Assertion and reason both are true, reason is correct  of assertion. 

B: Assertion and reason both are true, but reason is not the correct  of assertion.

C: Assertion is true, reason is false.

D: Assertion is false, reason is true

1. Assertion: Toxic metal ions are removed by the chelating ligands. 

    Reason: Chelate complexes tend to be more stable.

0 1 View | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    3 months ago

    This is a Assertion and Reason Type Questions as classified in NCERT Exemplar

    Ans: Correct option: A

    Toxic metal ions are removed by the chelating ligands. Chelate complexes tend to be more stable. When a solution of the chelating ligand is added to a solution containing toxic metals ligands chelates the metal ions by the formation of a stable complex.

    Thus, EDT A (hexadentate ligand) forms a stable metal chelate and is used to remove toxic metal ions.

    Both Assertion and Reason are correct and Reason is the correct  for Assertion.

    Hence, option A is correct.

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