A. V2O5 & Cr2O3.
B. Oxides of nitrogen & Cr2O3
C. V2O5 on a porous carrier & oxides of nitrogen
D. Oxides of nitrogen & V2O5 on a porous carrier
Related Mcqs:
- Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like_________________?
A. High cost
B. Fragile nature
C. Easy poisoning tendency
D. All A, B. and C. - Contact process of sulphuric acid manufacture ____________________?
A. Yields acid of higher concentration than chamber process
B. Yields acids of lower concentration than chamber process
C. Is obsolete
D. Eliminates absorber - In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed ?
A. Furnace → converter → absorber
B. Furnace → evaporator → absorber
C. Furnace → converter → evaporator
D. Converter → furnace → absorber - During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?
A. It is very corrosive at elevated temperature
B. Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be
further reduced)
C. It decomposes on further increasing the temperature
D. None of these - Sulphuric acid completely saturated with sulphur trioxide is called_________________?
A. Concentrated sulphuric acid
B. Oleum
C. Sulphurous acid
D. Dilute sulphuric acid - Sulphuric acid saturated with SO3 is called_________________?
A. Concentrated H2SO4
B. Sulphurous acid
C. Oleum
D. None of these - Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the_______________?
A. Fertiliser manufacture
B. Car battery solution
C. Synthesis of oleum
D. Water treatment - Sulphuric acid is mainly used in the _______________ industry ?
A. Fertiliser
B. Steel
C. Paper
D. Paint - Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?
A. Nitric acid
B. Sulphuric acid
C. Ammonium sulphate
D. Hydrochloric acid - DDT should not be allowed to come in contact with iron (during its manufacture) to _______________?
A. Avoid its decomposition
B. Prevent sulphonation of the monochlorobenzene by the acid catalyst
C. Achieve non-hygroscopic property
D. None of these
