Which catalyst is used in contact process ?
Which catalyst is used in contact process ?
A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
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Reaction at anode is called________________?
Reaction at anode is called________________?A. oxidation
B. reduction
C. redox
D. decompositionWhich one has maximum number of unpaired electrons ?
Which one has maximum number of unpaired electrons ?A. 6X
B. 7Y
C. 9Z
D. 13WWith impurities like P and S the open hearth furnace is lined with ?
With impurities like P and S the open hearth furnace is lined with ?A. SiO2
B. Fe2O3
C. FeO
D. CaO MgOCe58 is a member of__________?
Ce58 is a member of__________?A. S-block
B. P-block
C. d-block
D. f-blockPurines and pyrimidines are_________________?
Purines and pyrimidines are_________________?A. Enzymes
B. Nitrogenous bases
C. Carbohydrates
D. LipidsIn which of the following pairs are elements belonging to the same group ?
In which of the following pairs are elements belonging to the same group ?A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium