Vanadium pentoxide, V2O5, is used industrially as a catalyst in the
Correct answer: C. Contact process for making sulphuric acid
- A. Haber process
- B. hydrogenation of vegetable oils
- C. Contact process for making sulphuric acid
- D. cracking of long chain alkanes
Explanation
Vanadium pentoxide catalyses the oxidation of sulphur dioxide to sulphur trioxide, working by being reduced and then reoxidised in a cycle, which is a classic use of variable oxidation state. Iron is the catalyst for the Haber process and nickel for hydrogenation. Cracking uses zeolites, which are aluminosilicates rather than transition metal oxides.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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