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Standard XII

Chemistry

Graphite

Assertion :Gr...

Question

Assertion :Graphite is used as anode. Reason: Graphite helps in electron conduction.

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

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
(A) Both Assertion and Reason are correct and Reason is correct Explanation for Assertion
Note [ Graphite is good conductor of electricity as its having free mobile $p i$ electrons due to $s p^{2}$ hybridisation].

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Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

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In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices.

(a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion.

(b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion.

(d) Assertion is wrong statement but Reason is correct statement.

Assertion (A) Graphite is a good conductor of electricity however diamond belongs to the category of insulators.

Reason (R) Graphite is soft in nature on the other hand diamond is very hard and brittle.

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