Given below are few statements regarding electrode potentials. Mark the correct statements. (i) The potential associated with each electrode is known as electrode potential. (ii) A negative $${E^ \circ }$$ means that the redox couple is a stronger reducing agent than $$\frac{{{H^ + }}}{{{H_2}}}$$ couple. (iii) A positive $${E^ \circ }$$ means that the redox couple is a weaker reducing agent than $$\frac{{{H^ + }}}{{{H_2}}}$$ couple.

Question

Given below are few statements regarding electrode potentials. Mark the correct statements.
(i) The potential associated with each electrode is known as electrode potential.
(ii) A negative $${E^ \circ }$$ means that the redox couple is a stronger reducing agent than $$\frac{{{H^ + }}}{{{H_2}}}$$ couple.
(iii) A positive $${E^ \circ }$$ means that the redox couple is a weaker reducing agent than $$\frac{{{H^ + }}}{{{H_2}}}$$ couple.

A. (i) and (ii)

B. (i) and (iii)

C. (ii) and (iii)

D. (i), (ii) and (iii)

Answer : (i), (ii) and (iii)

Solution :
All the statements are correct.

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. $$CuS{O_4} + 2{H_2}O \to Cu{\left( {OH} \right)_2} + {H_2}S{O_4}$$

D. $$Zn + 2HCl \to ZnC{l_2} + {H_2}$$

Releted Question 2

Which reaction involves neither oxidation nor reduction?

A. $$CrO_4^{2 - } \to C{r_2}O_7^{2 - }$$

B. $$Cr \to CrC{l_3}$$

C. $$Na \to N{a^ + }$$

D. $$2{S_2}O_3^{2 - } \to {S_4}O_6^{2 - }$$

Releted Question 3

$$Zn$$ gives $${H_2}$$ gas with $${H_2}S{O_4}$$ and $$HCl$$ but not with $$HN{O_3}$$ because

A. Zn acts as an oxidising agent when it reacts with $$HN{O_3}$$

B. $$HN{O_3}$$ is weaker acid than $${H_2}S{O_4}$$ and $$HCl$$

C. In electrochemical series, $$Zn$$ is above hydrogen

D. $$NO_3^ - $$ is reduced in preference to hydronium $$ion$$

Releted Question 4

A compound of $$Xe$$ and $$F$$ is found to have $$53.5\% $$ of $$Xe.$$ What is oxidation number of $$Xe$$ in this compound ?

A. $$-4$$

B. $$0$$

C. $$+4$$

D. $$+6$$

Practice More Releted MCQ Question on
Redox Reaction

Practice More MCQ Question on Chemistry Section

Physical Chemistry Some Basic Concepts in Chemistry Stoichiometry States of Matter Solid, Liquid and Gas Atomic Structure Chemical Thermodynamics Solutions Solid State Surface Chemistry Chemical Equilibrium Ionic Equilibrium Chemical Kinetics Redox Reaction Electrochemistry Nuclear Chemistry

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