Q56 of 136 Page 42

Assertion : Cu is less reactive than hydrogen.

Reason : is negative


(iii) Assertion is true but the reason is false.

=+0.34V


= 0.00 V


Since, this radox couple have positive standard electrode potential, they are a weak reducing agent and therefore, Cu is less reactive than Hydrogen.


Hence, Cu is less reactive than Hydrogen as is positive.


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Match the items of Column I and Column II.

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Match the items of Column I and Column II on the basis of data given below:



 57

Assertion : ECell should have a positive value for the cell to function.

Reason : Ecathode < Eanode


 58

Assertion : Conductivity of all electrolytes decreases on dilution.

Reason : On dilution number of ions per unit volume decreases.