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Physical Chemistry -- Gaseous State
11.
To which of the following gaseous mixtures is Dalton’s law not applicable?
- A.Ne + He + SO2
- B.NH3 + HCl + HBr
- C.O2 + N2 + CO2
- D.N2 + H2 + O2
- Answer
- Report
Answer : [B]
12.
A mixture contains N2O4 and NO2 in the ratio 2 : 1 by volume. The
vapour density of the mixture is
- A.45.4
- B.49.8
- C.32.6
- D.38.3
- Answer
- Report
Answer : [D]
13.
An open vessel at 27oC is heated until ⅜th of the air in it has been expelled. Assuming that the volume remains constant, calculate the
temperature at which the vessel was heated
- A.307oC
- B.107oC
- C.480oC
- D.207oC
- Answer
- Report
Answer : [D]
14.
If the density of liquid water is 1.0 g cm-3 and that of water vapour is
0.0006 cm-3 at 100oC and 1 atm, then the volume occupied by water molecules in 1 litre of steam at this temperature is
- A.6 cm3
- B.60 cm3
- C.0.6 cm3
- D.0.06 cm3
- Answer
- Report
Answer : [C]
15.
A gas has a density of 2.68 g L-1 at stp. Identify it.
- A.NO2
- B.Kr
- C.COS
- D.SO2
- Answer
- Report
Answer : [C]
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