Assertion - EFe-Fe0 0- so cell is possible-

Assertion (A) o-nitrophenol is less soluble in water than the m- and p-isomers.
Reason (R) m and p-nitrophenols exist as associated molecules.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

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Assertion :E0Fe++|Fe<E0Ni++|Ni Fe electrode act as cathode and Ni electrode act as anode. Reason: Because ΔGo < 0 and EoCell > 0, so cell is possible.

The correct option is D Assertion is incorrect but Reason is correctReduction potential:EoNi+2|Ni=−0.24 ; EoFe+2|Fe=−0.44EoCell=EoFe|Fe+2+EoNi+2|Ni=0.20>0Fe electrode Anode, Ni electrode cathodeΔG < 0 ECell > 0 For working of cell.

Assertion : $E_{F e^{+ +} | F e}^{0} < E_{N i^{+ +} | N i}^{0}$ Fe electrode act as cathode and Ni electrode act as anode. Reason: Because $Δ G^{o}$ < 0 and $E_{C e l l}^{o}$ > 0, so cell is possible.