Can `Fe^(2+)` be produced in the reaction of Fe with 1(M) HCl solution? Explain. Given : `E_(Fe^(2+)|Fe)^(@)=-0.44V`

If Fe is allowed to react with 1(M) HCl solution, will Fe be oxidised to Fe^(2+)? E_(Fe^(+2)|Fe)^(@)=-0.44V

Between Fe and Mn which can be converted to +2 oxidation state easily ? Given : E_(Fe^(2+)|Fe)^(@) =-0.44" V & "E_(Mn^(2+)|Mn)^(@)= - 1.20 V

Stability of Fe^(3+) ion is greater than Mn^(3+) ion but less than Cr^(3+) - explain. [Given : E_(Cr^(2+)|Cr)^(0)=-0.9V, E_(Cr^(3+)|Cr^(2+))^(0)=-0.4V E_(Mn^(2+)|Mn)^(0)=-1.2V, E_(Mn^(3+)|Mn^(2+))^(0)=+1.5V E_(Fe^(2+)|Fe)^(0)=-0.4V, E_(Fe^(3+)|Fe^(2+))^(0)=+0.8V ]

The following electrochemical cell has been set up: Pt(1)|Fe^(3+),Fe(a=1)||Ce^(4+), Ce^(3+)(a=1)|Pt(2) . If an ammeter is connected between two platinum electrodes, predict the direction of the flow of current. Will the current increase or decreases with time ? Given: E_((Fe^(3+)|Fe^(2+)))^(@)=0.77V and E_((Ce^(4+)|Ce^(3+)))^(@)=1.61V

For the half - cell Fe^(3+), Fe^(2+)|Pt , the concentration of Fe^(2+) and Fe^(3+) ions are 0.1 and 0.01 (M) respectively. Determine the reduction potential of the half - cell at 25^(@)C . Given : E_(Fe^(3+), Fe^(2+)|Pt)^(@)=+0.77V

Fe^(2+) can be differentiated from Fe^(3+) with the help of -

Are the following reactions spontaneous? (b) Cd+Cl_(2)rarr Cd^(2+)+2Cl^(-) "Given : "E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Mg^(2+)|Mg)^(@)=-2.37V, E_(Cd^(2+)|Cd)^(@)=-0.40V, E_((1)/(2)Cl_(2)|Cl^(-))^(@)=+1.36V

Fe has a much lower tendency to get oxidised than Mn and Cr - explain. [Given : E_(Cr^(2+)|Cr)^(0)=-0.9V, E_(Cr^(3+)|Cr^(2+))^(0)=-0.4V E_(Mn^(2+)|Mn)^(0)=-1.2V, E_(Mn^(3+)|Mn^(2+))^(0)=+1.5V E_(Fe^(2+)|Fe)^(0)=-0.4V, E_(Fe^(3+)|Fe^(2+))^(0)=+0.8V ]

Represent symbolically the galvanic cells in which the following reaction occurs. Calculate the standard electromotive forces of the cells : (2) Fe+Sn^(2+)rarr Fe^(2+)+Sn Given : E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Zn)^(@)=-0.14V , E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Zn^(2+)|Zn)^(@)=-0.76V , E_(H^(+)|(1)/(2)H_(2))^(@)=0.00V .

The standard free energy of the reaction Fe(s)+Sn^(2+)(aq, 1M)rarr Fe^(2+)(aq, 1M)+Sn(s) is ("given : at "25^(@)C, E_(Fe^(2+)|Fe)^(@)=-0.44V and E_(Sn^(2+)|Sn)^(@)=-0.14V)-