Q62 of 136 Page 42

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : For measuring resistance of an ionic solution an AC source is used.


Reason : Concentration of ionic solution will change if DC source is used.


For measuring resistance of an ionic solution an AC (Alternating current) source is used because concentration of ionic solution will change if DC (Direct current) source is used. DC current can change the composition of the ionic solution.

More from this chapter

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60

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Mercury cell does not give steady potential.


Reason : In the cell reaction, ions are not involved in solution.


 61

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Electrolysis of NaCl solution gives chlorine at anode instead of O2.


Reason : Formation of oxygen at anode requires overvoltage.


 63

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Current stops flowing when ECell = 0.


Reason : Equilibrium of the cell reaction is attained.


 64

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Ag+/Ag increases with increase in concentration of Ag+ ions.


Reason : Ag+/Ag has a positive value.