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Assertion: Nickel can be purified by the Mond process. Reason: Ni (CO)4 is a volatile compound which decomposes at 460K to give pure Ni.
Assertion: Nickel can be purified by the Mond process. Reason: Ni (CO)4 is a volatile compound which decomposes at 460K to give pure Ni.
CBSE | Chemistry | Class 12 | Exercise 1 | General Principles and Processes of Isolation of Elements | NCERT Exemplar
Assertion: Nickel can be purified by the Mond process. Reason: Ni (CO)4 is a volatile compound which decomposes at 460K to give pure Ni.

(i) Both assertion and reason are true and the reason is the correct explanation of assertion.

(ii) Both assertion and reason are true but the reason is not the correct explanation of assertion.

(iii) The assertion is true but the reason is false.

(iv) The assertion is false but the reason is true.

(v) Assertion and reason both are wrong.

 

Correct Answer: (i) Both assertion and reason are true and the reason is the correct explanation of assertion.

Explanation: Nickel is heated in a stream of carbon monoxide that forms a complex, flexible nickel tetracarbonyl that, in the process of decomposition, gives off pure Ni. This process is called Mond process.

i

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