MEDIUM
12th ICSE
IMPORTANT
Earn 100

The following curve is obtained when molar conductivity,Λm is plotted against the square root of concentration, C1/2 along B and A-axis respectively for the two electrolytes A and B. Account for the increase in Λm for the electrolytes A and B with dilution.

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Important Questions on Electrochemistry

MEDIUM
12th ICSE
IMPORTANT

The following curve is obtained when molar conductivity, Λm  is plotted against the square root of concentration,C1/2 along Band A-axis respectively for the two electrolytes A and B. Determine Λm for these electrolytes.

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HARD
12th ICSE
IMPORTANT
Discuss the products obtained in the electrolysis of aqueous solution of brine.
 
HARD
12th ICSE
IMPORTANT
Discuss the products obtained in the electrolysis of sulphuric acid.
MEDIUM
12th ICSE
IMPORTANT
How much time is required for 1.5 g Ag to deposit when 1.50 A current is passed through an electrolytic cell containing AgNO3 solution with inert electrodes?
 
HARD
12th ICSE
IMPORTANT
A current of 1.70 A is passed through 300.0 mL of 0.160 M solution of ZnSO4 for 230 s with a current efficiency of 90 percent. Find out the molarity of Zn2+after the deposition of zinc. Assume the volume of the solution to remain constant during electrolysis.
EASY
12th ICSE
IMPORTANT
Two electrolytic cells containing silver nitrate solution and dilute sulphuric acid were connected in a series. A steady current of  2.5 A was passed through them till 1.078 g of silver was deposited (Ag = 107.8 g/mol).  How much electricity was consumed?
 
EASY
12th ICSE
IMPORTANT
Two electrolytic cells containing silver nitrate solution and dilute sulphuric acid were connected in a series. A steady current of 2.5 A was passed through them till 1.078 g of silver was deposited (Ag = 107.8 g/mol). What is the weight of oxygen gas liberated during the reaction?
 
MEDIUM
12th ICSE
IMPORTANT

How many moles of Hg will be produced by electrolysing 1.0 M Hg(NO3)2 solution with a current of 2.00 A for 3 hours?

 [Hg(NO3)2= 200.6 g/mol]