AIIMS 2019 Chemistry Acid-Base Reactions MCQ Question
Assertion : when treated with concentrated produces . Reason : Concentrated is reducing agent.
If both assertion and reason are true and reason is correct explanation of assertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Concentrated H₂SO₄ is a moderately strong oxidizing agent, but it is not strong enough to oxidize Cl⁻ ions to Cl₂ gas. Instead, when KCl reacts with concentrated H₂SO₄, it produces HCl gas through a displacement reaction, as the sulfate ion does not have the ability to oxidize chloride ions under these conditions. Other options are not applicable in this context, as they do not provide relevant reactions or outcomes related to the behavior of Cl⁻ with concentrated H₂SO₄. Understanding the oxidation states and the strength of oxidizing agents is crucial in predicting the products of chemical reactions.
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