The order of solubility of lithium halides in non-polar solvents follows the order:
LiI > LiBr > LiCl > LiF
LiF > LiI > LiBr > LiCl
LiCl > LiF > LiI > LiBr
Which of the following is used as a source of oxygen in space capsules , submarines and breathing masks?
Li2O
Na2O2
KO2
K2O2
Which of the following is not a cumulated diene?
Hexa - 2 , 3 - diene
Penta - 1 , 3 - diene
Hexa - 1 , 2 - diene
Penta - 2 , 3 - diene
The standard reduction potentials of half reactions are given below:
F2 (g) + 2e- 2F- (aq) ; E0 = + 2.85 V
Cl2 (g) + 2e- 2Cl- (aq) ; E0 = + 1.36 V
Br2 (g) + 2e- 2Br- (aq) ; E0 = + 1.06 V
I2 (g) + 2e- 2I- (aq) ; E0 = + 0.53 V
The strongest oxidising and reducing agents respectively are:
chlorine and iodine
fluorine and iodine ion
chloride and bromine
bromine and iodine
A compound CuCl has face-centred cubic structure. Its density is 3.4 g cm-3 , The length of unit cell is:
8.734
5.834
5.783
8.153
One of the following metals forms a volatile compound and this property is taken advantage for its extraction. This metal is:
iron
nickel
cobalt
tungsten
Intramolecular hydrogen bonding is present is:
nickel dimethyl glyoximate
anti-pyridine-2-carboxaldoxime
maleic acid monoanion
All of the above
Equivalent conductance of O .0128 N acetic acid solution, at 25°C is 14 ohm-1 eq-1 and at infinite dilution is 391 ohm-1eq-1 .The degree of dissociation of acetic acid in the solution and its dissociation constant, respectively are:
0.036 and 1.66x10-5
0.121 and 1.78x10-4
0 .213 and 1.84x10-5
O .054 and 1.94x10-4
Ag | AgCl | Cl- (C2) || Cl- (C1) | AgCl | Ag for this cell G is negative if:
C1 = C2
C1 > C2
C2 > C1
both (a) and (b)
B.
C1 > C2
Given cell is electrolyte concentration cell
Ecell = ln
[Ag+] =