The standard electrode potentials of four
elements $$A, B, C$$ and $$D$$ are –3.05, –1.66, –0.40 and +0.80. The highest chemical reactivity will be exhibited by :
A.
$$A$$
B.
$$B$$
C.
$$C$$
D.
$$D$$
Answer :
$$A$$
Solution :
Standard electrode potential i.e. reduction potential of $$A$$ is minimum $$(–3.05V)$$ i.e. its oxidation potential is maximum which implies $$'A'$$ is most reactive chemically.
Releted MCQ Question on Physical Chemistry >> Redox Reaction
Releted Question 1
Which of the following represents a redox reaction?
A.
$$NaOH + HCl \to NaCl + {H_2}O$$
B.
$$BaC{l_2} + {H_2}S{O_4} \to BaS{O_4} + 2HCl$$
C.
$$CuS{O_4} + 2{H_2}O \to Cu{\left( {OH} \right)_2} + {H_2}S{O_4}$$