${E^0}_{F{e^{3 + }}/F{e^{2 + }}}$ $=$ $ + 0.77\;V$
${E^0}_{S{n^{2 + }}/Sn} = - 0.14\;V$ Under standard conditions the potential for the reaction $S{n_{(s)}} + 2F{e^{3 + }}(aq) \to 2F{e^{2 + }}(sq) + S{n^{2 + }}(aq)$ is ............ $\mathrm{V}$
$E_{Cell}^0 = E_{Sn/S{n^{2 + }}}^0 + E_{F{e^{3 + }}/F{e^{2 + }}}^0$ $ = (0.14) + (0.77)$
$E_{Cell}^{} = 0.91\;Volts$.
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Assertion $A:$ A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.
Reason $R:$ Benzoic acid is soluble in hot water.
In the light of the above statements, choose the most appropriate answer from the options given below.
| List $-I$ | List $-II$ |
| $(A)$ Benzaldehyde | $(i)$ Phenolphthalein |
| $(B)$ Phthalic anhydride | $(ii)$ Benzoincondensation |
| $(C)$ Phenyl benzoate | $(iii)$ Oil of wintergreen |
| $(D)$ Methyl salicylate | $(iv)$ Friesre arrangement |
$(1)$ trans $-[Co(NH_3)_4 Cl_2]^+$
$(2)$ cis $-[Co(NH_3)_2 (en)_2]^{3+}$
$(3)$ trans $-[Co(NH_3)_2(en)_2]^{3+}$
$(4)$ $NiCl^{2-}_4$
$(5)$ $TiF^{2-}_6$
$(6)\, CoF^{3-}_6$
Choose the correct code
Reason : Fluorine has $2s^2\,2p^5$ configuration.