1
JEE Advanced 2014 Paper 1 Offline
MCQ (More than One Correct Answer)
+3
-0
In a galvanic cell, the salt bridge
A
does not participate chemically in the cell reaction.
B
stops the diffusion of ions from one electrode to another.
C
is necessary for the occurrence of the cell reaction.
D
ensures mixing of the two electrolytic solutions.
2
JEE Advanced 2014 Paper 1 Offline
Numerical
+3
-0
A compound H2X with molar weight of 80g is dissolved in a solvent having density of 0.4 gml–1 . Assuming no change in volume upon dissolution, the molality of a 3.2 molar solution is
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3
JEE Advanced 2014 Paper 1 Offline
Numerical
+3
-0
MX2 dissociates in M2+ and X- ions in an aqueous solution, with a degree of dissociation ($$\alpha$$) of 0.5. The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is
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4
JEE Advanced 2014 Paper 1 Offline
Numerical
+3
-0
A list of species having the formula XZ4 is given below.

XeF4, SF4 ,SiF4, $$BF_4^-$$, $$BrF_4^-$$, [Cu(NH3)4]2+, [FeCl4]2-, [CoCl4]2- and [PtCl4]2-

Defining shape on the basis of the location of X and Z atoms, the total number of species having a square planar shape is
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