1
JEE Advanced 2014 Paper 1 Offline
Numerical
+4
-0
If the value of Avogadro number is 6.023 $$\times$$ 1023 mol-1 and the value of Boltzmann constant is 1.380 $$\times$$ 10-23 J K-1, then the number of significant digits in the calculated value of the universal gas constant is
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2
JEE Advanced 2014 Paper 1 Offline
Numerical
+4
-0
In an atom, the total number of electrons having quantum numbers n = 4, |ml| = 1 and ms = –1/2 is
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3
JEE Advanced 2014 Paper 1 Offline
Numerical
+4
-0
A list of species having the formula XZ4 is given below.

XeF4, SF4 ,SiF4, $$BF_4^-$$, $$BrF_4^-$$, [Cu(NH)3]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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4
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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