A. 20% oleum
B. 65% oleum
C. 78% H2SO4
D. 98% H2SO4
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 - 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 - 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 - Sulphuric acid saturated with SO3 is called_________________?
A. Concentrated H2SO4
B. Sulphurous acid
C. Oleum
D. None of these - Conversion of SO2 to SO3 in Monsanto 4-pass converter is about ____________________ percent?
A. 80
B. 90
C. 98
D. 100 - Absorption of SO3 in 97% H2SO4 is_______________?
A. Exothermic
B. Endothermic
C. Not possible
D. None of these - ______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?
A. Pyrex
B. Soda lime
C. Lead
D. High silica - Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?
A. CaO
B. MnO2
C. ZnO
D. FeS - Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?
A. Flint
B. Soda
C. Pyrex
D. Potash
