A. 80
B. 90
C. 98
D. 100
Related Mcqs:
- In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by ?
A. Increasing the oxygen concentration
B. Putting more quantity of V2O5 catalyst in the converter
C. Removing some quantity of SO3 during intermediate stage
D. Maintaining low temperature & pressure in the converter - At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system) ?
A. P
B. √P
C. P2
D. 1/P - Oxidation of SO2 to SO3 is favoured by______________________?
A. Low temperature and low pressure
B. Low temperature and high pressure
C. High temperature and low pressure
D. High temperature and high pressure - In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because___________________?
A. SO3 gas is sparingly soluble in water
B. Water forms an acid mist, which is difficult to absorb
C. The purity of acid is affected
D. Scale formation in the absorber is to be avoided - Sulphuric acid saturated with SO3 is called_________________?
A. Concentrated H2SO4
B. Sulphurous acid
C. Oleum
D. None of these - Which is the most efficient absorbent for SO3 out of the following ?
A. 20% oleum
B. 65% oleum
C. 78% H2SO4
D. 98% H2SO4 - Absorption of SO3 in 97% H2SO4 is_______________?
A. Exothermic
B. Endothermic
C. Not possible
D. None of these - SO2 is bubbled through hot sugar cane juice to_______________?
A. Act as an acidifying agent
B. Increase its concentration
C. Increase the amount of molasses
D. Increase the crystal size - L.D. converter is used in the production of_________________?
A. Pig iron
B. Steel
C. Copper
D. Zinc - The catalyst used in shift converter is___________________?
A. Nickel
B. Vanadium
C. Silica gel
D. Alumina
