Catalyst used in the ‘catalytic converter’ employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is__________________?

Related Mcqs:

1. During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum ?

   A. Idle running B. Acceleration C. Cruising D. Deceleration...

2. The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?

   A. -109.5 B. +109.5 C. +180 D. +100...

3. Photochemical smog is formed from automobile exhaust ________________?

   A. By reaction of hydrocarbon & nitric oxide in presence of sunlight B. Appears only on sunny days C. Is harmful for crops and trees also besides causing eye irritation & asthma D. All A., B. & C....

4. Nitrogen oxides (NOx) is not produced in the ______________ industry?

   A. Nitric acid making B. Nitrogenous fertiliser C. Detergent D. Any of these...

5. Tolerable limit of nitrogen oxides in air is _____________ ppm?

   A. 0.1 B. 1 C. 5 D. 25...

6. 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...

7. 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...

8. The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is _____________ kg mole?

   A. 1 B. 0 C. 16 D. 44...

9. On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ?

   A. (∂P/∂V)S = (∂P/∂V)T B. (∂P/∂V)S = [(∂P/∂V)T]Y C. (∂P/∂V)S = y(∂P/∂V)T D. (∂P/∂V)S = 1/y(∂P/∂V)T...

10. Carbon monoxide is a pollutant, which causes_________________?

    A. Respiratory disease (e.g. asthma) B. Asphyxiation (suffocation) leading to death C. Retardation in crop growth D. Damage to building materials like marble...