1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K is :
A
3 atm
B
0.3 atm
C
0.18 atm
D
1.8 atm
2
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 dm3 to a volume of 100 dm3 at 27oC is :
A
35.8 J mol-1 K−1
B
32.3 J mol-1 K−1
C
42.3 J mol-1 K−1
D
38.3 J mol-1 K−1
3
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at −6oC will be : [Kf for water = 1.86 K kg mol−1 , and molar mass of ethylene glycol = 62 g mol−1 )
A
204.30 g
B
400.00 g
C
304.60 g
D
804.32 g
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Trichloroacetaldehyde was subjected to Cannizzaro’s reaction by using NaOH. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is :
A
Trichloromethanol
B
2, 2, 2-Trichloropropanol
C
Chloroform
D
2, 2, 2-Trichloroethanol
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