Reason
Because $$\triangle { G }^{ o }<0$$ and $${ E }_{ cell }^{ 0 }>0,$$ cell is possible
Assertion
$${ E }_{ Fe^{ ++ }|Fe }^{ 0 }<{ E }_{ { Ni }^{ ++ }|Ni }^{ 0 }$$ Fe electrode act as cathode and Ni electrode act as anode
$${ E }_{ Fe^{ ++ }|Fe }^{ 0 }<{ E }_{ { Ni }^{ ++ }|Ni }^{ 0 }$$ Fe electrode act as cathode and Ni electrode act as anode
A
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
B
Assertion is correct but Reason is incorrect
C
Assertion is incorrect Reason is correct
D
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Correct option is D. Assertion is incorrect Reason is correct
$${ E }_{ { Ni }^{ +2 }|Ni }^{ o }=-0.24$$ $${ E }_{ { Fe }^{ +2 }|Fe }^{ o }=-0.44$$
$${ E }_{ cell }^{ o }={ E }_{ Fe|{ Fe }^{ +2 } }^{ o }+{ E }_{ { Ni }^{ +2 }|Ni }^{ o }$$
$$=0.44-0.24=0.20$$
Fe electrode Anode, Ni electrode cathode
$$\triangle G<0\quad { E }_{ Cell }>0$$ For working of cell
Option D is correct.