In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the coreect answer out of the following choices.
(a) Both assertion and reason are true and reason is the coreect explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
(e) Assertion and reason both are wrong.
Assertion (A) Zirconium can be purified by van Arkel method.
Reason $(R) Z r I_{4}$ is volatile and decomposes at 1800K.

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Solution

(a) Both assertion and reason are ture and reason is the correct explanation of assertion. Zirconium can be purified by van Arkel method which include formation of volatile $Z r I_{4}$ which decomposes at 1800 K to Zr.

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(a) Both assertion and reason are ture and reason is the correct explanation of assertion. Zirconium can be purified by van Arkel method which include formation of volatile ZrI4 which decomposes at 1800 K to Zr.

(a) Both assertion and reason are ture and reason is the correct explanation of assertion. Zirconium can be purified by van Arkel method which include formation of volatile $Z r I_{4}$ which decomposes at 1800 K to Zr.