Given below are a set of half-cell reactions (in acidic medium) alongw

1.	Given below are a set of half-cell reactions (in acidic medium) alongwith their E° (in volt) values.l2+2e- → 2l-E°= 0.54Cl2+2e- → 2Cl-E°= 1.3Mn+3 +e- →Mn+2E°= 1.50Fe+3+e- → Fe+2E°= 0.7O2+4H+4e →2H2OE°= 1.231.Among the following, identify the correct statement (1) Cl– is oxidised by O2 (2) Fe+2 is oxidised by iodine (3) I– is oxidised by chlorine (4) Mn+2 is oxidised by chlorine2. While Fe+3 is stable, Mn+3 is not stable in acid solution because (1) O2 oxidises Mn+2 to Mn+3 (2) O2 oxidises both Mn+2 to Mn+3 and Fe+2 to Fe+3 (3) Fe+3 oxidises H2O to O2 (4) Mn+3 oxidises H2O to O23.The strongest reducing agent in aqueous solution is (1) I– (2) Cl– (3) Mn+2 (4) Fe+2
Answer» The Correct option is 1.(3) I^– is oxidised by chlorine 2.(4) Mn⁺³ oxidises H₂O to O₂ 3. (1) I^–

Given below are a set of half-cell reactions (in acidic medium) alongwith their E° (in volt) values.l2+2e- → 2l-E°= 0.54Cl2+2e- → 2Cl-E°= 1.3Mn+3 +e- →Mn+2E°= 1.50Fe+3+e- → Fe+2E°= 0.7O2+4H+4e →2H2OE°= 1.231.Among the following, identify the correct statement (1) Cl– is oxidised by O2 (2) Fe+2 is oxidised by iodine (3) I– is oxidised by chlorine (4) Mn+2 is oxidised by chlorine2. While Fe+3 is stable, Mn+3 is not stable in acid solution because (1) O2 oxidises Mn+2 to Mn+3 (2) O2 oxidises both Mn+2 to Mn+3 and Fe+2 to Fe+3 (3) Fe+3 oxidises H2O to O2 (4) Mn+3 oxidises H2O to O23.The strongest reducing agent in aqueous solution is (1) I– (2) Cl– (3) Mn+2 (4) Fe+2

Answer»

The Correct option is

1.(3) I^– is oxidised by chlorine

2.(4) Mn⁺³ oxidises H₂O to O₂

3. (1) I^–

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What are elementary reactions ?

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