A. Gives higher conversion efficiency
B. Has a longer life and is not poisoned by arsenic
C. Handles lower SO2 content gas (7 -10% SO2), thus increasing the capital cost of the plant
D. All A , B. and C.
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. - Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of_________________?
A. Carbon
B. Arsenic
C. Lead
D. Sulphur - Catalyst used during the manufacture of ‘Vanaspati Ghee’ is ___________________?
A. Zinc
B. Nickel
C. Platinum
D. Copper - The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?
A. Dilute H2SO4
B. Oleum
C. Ultraviolet light
D. None of these - Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene ?
A. AgO
B. Al2O3
C. ZnCl2
D. Fe2O3 - Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
A. NH3
B. NaCl
C. CaO
D. Coke - Manufacture of phthalic anhydride uses ______________ as a catalyst ?
A. Ni
B. Cr
C. V2O5
D. Al2O3 - Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ?
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 - Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?
A. Depithing
B. Digestion
C. Bleaching
D. None of these - Mercury cells for caustic soda manufacture, compared to diaphragm cells___________________?
A. Require lower initial investment
B. Require more power
C. Produce lower concentration NaOH
D. None of these
