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Assertion : Nickel can be purified by Mond's process.
Reason : $\mathrm{Ni}(\mathrm{CO})_4$ is volatile compound which decomposes at $460 \mathrm{~K}$ to give pure $\mathrm{Ni}$.
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Reason : $\mathrm{Ni}(\mathrm{CO})_4$ is volatile compound which decomposes at $460 \mathrm{~K}$ to give pure $\mathrm{Ni}$.
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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
Nickel can be purified by Mond's process in which formation of a volatile compound $\mathrm{Ni}(\mathrm{CO})_4$ takes place which further decomposes to $\mathrm{Ni}$ at $460 \mathrm{~K}$.
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