A. Nitric acid making
B. Nitrogenous fertiliser
C. Detergent
D. Any of these
Related Mcqs:
- Tolerable limit of nitrogen oxides in air is _____________ ppm?
A. 0.1
B. 1
C. 5
D. 25 - Catalyst used in the ‘catalytic converter’ employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is__________________?
A. Alumina
B. Platinum
C. Vanadium pentoxide
D. Iron oxide - Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?
A. Active carbon
B. Silica gel
C. Bog iron (iron oxide)
D. Pulverised limestone - A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is__________________?
A. 13728 J
B. 19206 J
C. 4576 J
D. 12712 J - In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is__________________?
A. 180
B. 60.3
C. 720
D. 200 - TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?
A. 5
B. 100
C. 1000
D. 2000 - Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes_______________?
A. Foaming
B. Odour nuisances
C. Undesirable plant growth
D. Turbidity - Higher concentration of nitrogen dioxide in atmospheric air causes___________________?
A. Cancer
B. Bronchitis
C. Asphyxiation
D. Corrosion - Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about ______________ decibels?
A. 90
B. 120
C. 150
D. 180 - What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?
A. 2
B. 0
C. 3
D. 1
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