The questions consist of two atatements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses :
`E_("cell")^@ =0` for a chloride ion concentration cell .
For this concentration cell where ` E_("cell") = ("RT")/("nF") In ([Cl^-]_(LHS))/([Cl^-]_(RHS))`.

Options

A. If both the assertion and reason are true but the reason is ont the correct explanation of assertion
B. If both the assertion and reason are true but the reason is not the correct explanation of assertion.
C. If the assertion is true but reason is false.
D. If assertion is false but reason is rue

Answer

B

Explanation

` Pt , Cl_2 Cl_2| Cl^- (aq) |Cl_2 (g) Pt`
Anode : ` 2Cl^(-)rarr Cl_2 +2e^- (R.H.S.)`
Cathode : Cl_2 +2e^(-) rarr 2Cl^(-0` (L.H.S)`
` E_(cell) = 0 (RT)/(nF) In ([Cl^(-) ]LHS)/([Cl^(-)]RHS)`
` E_(cell) = 0 (RT)/(nF) In ([Cl^(-) ]LHS)/([Cl^(-)]RHS)`.