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Read the following statements: (I) Al ...

Read the following statements:
(I) Al has greater affinity than Fe, for oxygen.
(II) Cast iron has impurity of zinc and lead.
(III) Refining of nickel is done by vapour phase refining.
(IV) In cyanide process, oxygen and zinc dust are used as oxidizing agent and reducing agent, respectively. Choose the correct set of statements.

A

I, III

B

II, III,IV

C

I, III, IV

D

I,IV

Text Solution

Verified by Experts

The correct Answer is:
C
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