\[{{V}_{2}}{{O}_{5}}\] is useful as catalyst in

1.	\[{{V}_{2}}{{O}_{5}}\] is useful as catalyst in
A.	Manufacture of \[{{H}_{2}}S{{O}_{4}}\]
B.	Manufacture of \[HN{{O}_{3}}\]
C.	Manufacture of \[N{{a}_{2}}C{{O}_{3}}\]
D.	It is not a catalyst
Answer» B. Manufacture of \[HN{{O}_{3}}\]

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\[{{V}_{2}}{{O}_{5}}\] is useful as catalyst in

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