Redox Reaction ...

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Among halogens fluorine is the best oxidant.

Reason (R) : Fluorine is the most electronegative atom.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Among halogens fluorine is the best oxidant.

Reason (R) : Fluorine is the most electronegative atom.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): In the reaction between potassium permanganate and potassium iodide, permanganate ions act as oxidising agent.

Reason (R) : Oxidation state of manganese changes from +2 to +7 during the reaction.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): In the reaction between potassium permanganate and potassium iodide, permanganate ions act as oxidising agent.

Reason (R) : Oxidation state of manganese changes from +2 to +7 during

the reaction.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : The decomposition of hydrogen peroxide to form water and oxygen is an example of disproportionation reaction.

Reason (R) : The oxygen of peroxide is in –1 oxidation state and it is converted to zero oxidation state in O₂ and – 2 oxidation state in H₂O.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : The decomposition of hydrogen peroxide to form water and oxygen is an example of disproportionation reaction.

Reason (R) : The oxygen of peroxide is in –1 oxidation state and it is converted to zero oxidation state in O₂ and –2 oxidation state in H₂O.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.

Reason (R) : In the representation and and are redox couples.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): Structure I is more accurate than II

Reason (R): More electronegative oxygen atom carries negative charge in I.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.

Reason (R) : In the representation E^OFe³⁺ /Fe²⁺ and E^O Cu²⁺/Cu, Fe³⁺/ Fe²⁺ and Cu²⁺ / Cu are redox couples.

Direction: In the following questions, a statement of assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : In a reaction Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s) Zn is a reductant but itself get oxidized.

Reason (R) : In a redox reaction, oxidant is reduced by accepting electrons and reductant is oxidized by losing electrons.