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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Petra means ______ ?
Petra means ______ ?A. Petrol
B. Sediment
C. Rock
D. FuelSize of molecule depends upon________________?
Size of molecule depends upon________________?A. Atomicity
B. Shape of molecule
C. Both A and B
D. Difficult to predictNucleic acids were first demonstrated in_________________?
Nucleic acids were first demonstrated in_________________?A. Pus cells
B. Sperm heads
C. 1872
D. all of the aboveWhich one of the following is not a semiconductor ?
Which one of the following is not a semiconductor ?A. Si
B. Ge
C. Se
D. SnThe ore CaSO4.H2O has the general name_______________?
The ore CaSO4.H2O has the general name_______________?A. Gypsum
B. Dolomite
C. Calcite
D. Plaster of ParisWhich of the following is solid?
Which of the following is solid?A. Water
B. Stone
C. Both
D. None