In which of the following processes, is vanadium pent oxide
used as a catalyst?
1 Contact process
2 Haber’s process
3 Solvay process
4 None of these
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Atoms of an element differ from those of all other elements in 1 Atomic number and electronic configuration 2 Atomic number and number of valence electrons 3 Number of neutrons and electronic configuration 4 None of these
The metal that is present in photo films is 1 Mercury 2 Platimnum 3 Magnesium 4 Silver
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