Assertion :Iron and Copper are required as micro nutrients in plants. Reason: Iron and copper possess variable valency.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Iron and copper are micronutrients for plants. They act as electron carriers in thylakoid membranes and inner mitochondrial membrane. Iron and copper possess variable valency and can occur in different oxidation states. These minerals can thus undergo reversible oxidation and reduction. During oxidation they are able to donate electron, while during reduction they are able to accept to electrons.

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Similar questions

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Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

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{SiO}_{2}

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.

Reason:

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Q. Assertion: The compressibility factor for

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Reason: The compressibility factor for

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Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

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