| The transition metals and their compounds are known for their catalytic activity. This activity is due to: |
| (I) Their ability to adopt multiple oxidation states to form complexes. |
| (II) \[{{V}_{2}}{{O}_{5}}\] is used as a catalyst in contact process for the manufacture of \[HN{{O}_{3}}\]. |
| (III) Platinised asbestos is used as a catalyst in Ostwald's process. |
| (IV) \[F{{e}^{2+}}\] catalyses the reaction between \[{{I}^{\Theta }}\] and \[{{S}_{2}}{{O}_{8}}^{2-}\] |
A) I, II
B) I, III
C) I, II, III
D) All of the above
Correct Answer: B
Solution :
[b] CORRECT statement (II): For the manufacture of \[{{H}_{2}}S{{O}_{4}}\]. CORRECT statement (IV): \[F{{e}^{+3}}\] catalyses.
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