Worksheetssolutions+electro+kinetics
Total questions: 15
Worksheet time: 19mins
Which of the following behavior is true about the ideal binary liquid solution of liquids 'A' and 'B', If P0A<P0B?
Plot of Ptotal vs XA is non-linear
Plot of Ptotal vs XB is linear with +ve slope
Plot of Ptotal vs XB is linear with slope = 0
Plot of Ptotal vs XB is linear with -ve slope
For an ideal solution containing two liquid components A and B, the Gibb's free energy of mixing is minimum, when the molar ratio of the liquids is
1:1
1:2
1:1000
1:10
Dry air was passed successively through a solution of 5gm of a solute in 80 gm of water and then through pure water. The loss in mass of solution was 2.5gm and that of pure solvent was 0.04gm. What is the molecular mass of the solute?
70.3
71.43
14.28
14.06
Due to osmosis, the volume of concentrated solution
decreases slowly
increases slowly
increases rapidly
decreases rapidly
The amino acid of alanine has two isomers, such as α - alanine and β - alanine. Whenequal masses of these two compounds are dissolved in equal masses of solvent, the solution of α - alanine freezes at relatively lower temperature. Which isomer, has the larger equilibrium constant for ionization?
α - alanine
β - alanine
same for both
unpredictable
An aqueous solution of 10% NaCl ( consider ideal behaviour of the solution) is cooled. It will allow some.
NaCl to crystallize
water to freeze
water to solidify along with some NaCl
Precipitation of NaCl
Four colorless salt solutions are placed are placed in each. Which solution finally turns blue?
AgNO3
Pb(NO3)2
Zn(NO3)2
Cd(NO3)2
Use of lithium metal as an electrode in high energy density batteries is due to
lithium is the lightest element
lithium has the highest oxidation potential
lithium is quite reactive
lithium does not corrode easily
Faraday's law of electrolysis fails when
temperature increased
inert electrodes are used
a mixture of electrolytes are used
none of these
copper can be deposited from acidified copper sulphate and alkaline cuprous cyanide. If the same current is passed for a definite time.
The amount of copper deposited from acidic copper sulphate will be higher
the amount of copper deposited from alkaline cuprous cyanide will be higher
the same amount of copper will be deposited
copper will not deposit in either case
Which of the following solution have highest resistance?
1N - NaCl
0.05N - NaCl
2N - NaCl
0.1N - NaCl
When molten ICl3 is electrolysed using platinum electrodes
I2 is evolved at cathode and Cl2 at anode
Cl2 is evolved at cathode and I2 at anode
I2 is evolved at cathode and both I2 and Cl2 at anode
electrolysis does not take place
The hydrolysis of an ester was carried out seperartely with 0.05M HCl and 0.05M H2SO4. Which of the following is true for the first order rate constant of the reaction?
1
2
1.5
0.5
