Ammonia gas can be dried by___________________?

Related Mcqs:

1. Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas) ?

   A. √T
   B. 1/√P
   C. √y
   D. 1/√ρ

2. Ammonia leakage in the refrigeration system is detected by_________________?

   A. Sulphur stick, which on detection gives white smoke
   B. Using chemical reagents
   C. Its smell
   D. Soap solution

3. A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its_______________?

   A. Aqueous tension
   B. Saturated humidity
   C. Vapor pressure
   D. Absolute humidity

4. Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that_________________?

   A. Pure oxygen has been used for combustion
   B. Nitrogen percentage in the fuel is very high
   C. Excess air has been used for combustion
   D. Hydrogen is not present in the fuel

5. Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?

   A. +4000
   B. -4000
   C. 10000
   D. -10000

6. The lightest non-inflammable gas is_________________?

   A. H2
   B. He
   C. Ar
   D. O2

7. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog ?

   A. Nitrogen oxides
   B. Hydrocarbons
   C. Both A. & B.
   D. Carbon monoxide

8. Large scale fire on fuel gas line is normally extinguished by________________?

   A. Water
   B. Steam
   C. Foam
   D. Nitrogen

9. In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be_______________?

   A. ΔQ = 0, ΔS=0
   B. ΔQ = 0, ΔS = +ve
   C. ΔQ = 0, ΔS = -ve
   D. ΔQ = +ve, ΔS= +ve

10. The ‘laughing gas’ is__________________?

    A. Nitrous oxide
    B. Nitric oxide
    C. Nitrogen trioxide
    D. Nitrogen pentoxide