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.bvg
(a) Both assertion and reason are true, and reason is the correct explanation of the assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is not true but reason is true.
(d) Both assertion and reason are false. Assertion: Cu2+ iodide is not known.
Reason: Cu2+ oxidises I- to iodine.
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a) Both assertion and reason are true, and reason is the correct explanation of the assertion.
Explanation:
Copper is highly oxidizing metal. When it reacts with iodide ions, it oxidizes it to iodine where its valency changes from -1 in iodide ions to 0 in iodine.
In the process, it reduces from copper 2+ to copper 1+ iodide. As its valency changes from 2 to 1 as it combines with iodide ion.
Therefore, copper 2+ iodide is unknown
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