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JEE Main levelSingle correct optionDifficulty 2 of 3df091

Assertion (A): In the titration of with , dilute nitric acid is not used to acidify the solution. Reason (R): Nitric acid is a reducing agent and would reduce before it reacts with .

  1. ABoth Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  2. BBoth Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  3. CAssertion is true but Reason is false
  4. DAssertion is false but Reason is true

Answer: C

A is true: is unsuitable. R is false, because nitric acid is an oxidising agent, not a reducing agent; it would oxidise itself and so the titre would be wrong. Hence A is true and R is false.
Practice d- and f-Block Elements More on Important compounds: KMnO4 and K2Cr2O7

More questions on Important compounds: KMnO4 and K2Cr2O7