An organic compound (C8H10O2) rotates plane-porarised light. It produces pink color with neutral FeCl3 solution. What is the total number of all the possible isomers for this compound?
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2
JEE Advanced 2020 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
In an experiment, m grams of a compound X (gas/liquid/solid) taken in a container is loaded in a balance as shown in figure I below.
In the presence of a magnetic field, the pan with X is either deflected upwards (figure II), or deflected downwards (figure III), depending on the compound X. Identify the correct statement(s).
A
If X is H2O(l), deflection of the pan is upwards
B
If X is K4[Fe(CN)6](s), deflection of the pan is upwards.
C
If X is O2(g), deflection of the pan is downwards.
D
If X is C6H6(l), deflection of the pan is downwards
3
JEE Advanced 2020 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
Which of the following plots is(are) correct for the given reaction?
([P]0 is the initial concentration of P)
A
B
C
D
4
JEE Advanced 2020 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
Which among the following statement(s) is/are true for the extraction of aluminium from bauxite?
A
Hydrated Al2O3 precipitates, when CO2 is bubbled through a solution of sodium aluminate.
B
Addition of Na3AlF6 lowers the melting point of alumina.
C
CO2 is evolved at the anode during electrolysis.
D
The cathode is a steel vessel with a lining or carbon.
