1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The freezing point depression constant (Kr) of benzene is 5. 12 K kg mol-1. The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is rounded off upto two decimal places :
A
0.80 K
B
0.40 K
C
0.60 K
D
0.20 K
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The mixture which shows positive deviation from Raoult's law is :
A
Benzene + Toluene
B
Acetone + Chloroform
C
Chloroethane + Bromoethane
D
Ethanol + Acetone
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
For an ideal solution, the correct option is :
A
$$\Delta $$mixH = 0 at constant T and P
B
$$\Delta $$mixG = 0 at constant T and P
C
$$\Delta $$mixS = 0 at constant T and P
D
$$\Delta $$mixV $$ \ne $$ 0 at constant T and P
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
The mixture that forms maximum boiling azeotrope is :
A
Ethanol + Water
B
Acetone + Carbon disulphide
C
Heptane + Octane
D
Water + Nitric acid
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