ElectrochemistryHard
Question
In the balanced chemical reaction, IO3- + aI- + bH+ → cH2O + dI2 a, b, c and d respectively to
Options
A.5, 6, 3, 3
B.5, 2, 6, 3
C.3, 5, 3, 6
D.5, 6, 5, 5
Solution
+5IO3- + I- + H+ → H2O + 0I2
(A) Oxidation half cell
I- → I2
(i) Balancing the number of atoms
2I- → I2
(ii) Balancing charge
2I- → I2 + 2e-
(B) Reduction half reaction
IO3- + H+ → H2O + I2
(i) Balancing number of charge
2IO3- + 12H+ → 6H2O + I2
(ii) Balancing the charge
2IO3- + 12H+ + 10e- → 6H2O + I2
Multiplying the balanced oxidation half reaction by 5 and adding it to balanced reduction half reaction
2I- → I2 + 2e- × 5
2IO3- + 12H+ + 10e- → 6H2O + I2
2IO3- + 10I- + 12H+ → 6I2 + 6H2O
or IO3- + 5I- + 6H+ → 3I2 + 3H2O
a = 5, b = 6, c = 3 and d = 3
(A) Oxidation half cell
I- → I2
(i) Balancing the number of atoms
2I- → I2
(ii) Balancing charge
2I- → I2 + 2e-
(B) Reduction half reaction
IO3- + H+ → H2O + I2
(i) Balancing number of charge
2IO3- + 12H+ → 6H2O + I2
(ii) Balancing the charge
2IO3- + 12H+ + 10e- → 6H2O + I2
Multiplying the balanced oxidation half reaction by 5 and adding it to balanced reduction half reaction
2I- → I2 + 2e- × 5
2IO3- + 12H+ + 10e- → 6H2O + I2
2IO3- + 10I- + 12H+ → 6I2 + 6H2O
or IO3- + 5I- + 6H+ → 3I2 + 3H2O
a = 5, b = 6, c = 3 and d = 3
Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
Mark out the correct statement(s)...The electrical conductivity of a solution serves as a means of determining the end point in a chemical reaction, involve...Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25o C. For this process, which of the fo...Given the ionic equivalent conductivities for the following ions: λoeq K+ = 73.5 cm2 ohm-1 eq-1 λoeq Al3+ = 14...C1 - C2 bond is shortest in...