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Assertion :- In a redox reaction, the ox...

Assertion :- In a redox reaction, the oxidation number of the oxidant decreases while that of reductant increases.
Reason :- Oxidant gains electron(s) while reductant loses electron(s).

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False.

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The correct Answer is:
A
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Oxidation and reduction process involves the transaction of electrons. Loss of electrons is oxidation and the gain of electrons is reduction. It is thus obvious that in a redox reaction, the oxidant is reduced by accepting the electrons and the reductant is oxidised by losing electrons. The reactions in which a species disproportionates into two oxidation states (lower and higher) are called disproportionation reactions. In electrochemical cells, redox reaction is involved, i.e., oxidation takes place at anode and reduction at cathode. Detennine the change in oxidation number of sulphur in H_(2)S and SO_(2) respectively in the following reaction: 2H_(2)S+SO_(2) to 2H_(2)O+3S

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Oxidation and reduction process involves the transaction of electrons. Loss of electrons is oxidation and the gain of electrons is reduction. It is thus obvious that in a redox reaction, the oxidant is reduced by accepting the electrons and the reductant is oxidised by losing electrons. The reactions in which a species disproportionates into two oxidation states (lower and higher) are called disproportionation reactions. In electrochemical cells, redox reaction is involved, i.e., oxidation takes place at anode and reduction at cathode. The reaction Cl_(2)to Cl^(-)+ClO_(3)^(-) is:

Oxidation and reduction process involves the transaction of electrons. Loss of electrons is oxidation and the gain of electrons is reduction. It is thus obvious that in a redox reaction, the oxidant is reduced by accepting the electrons and the reductant is oxidised by losing electrons. The reactions in which a species disproportionates into two oxidation states (lower and higher) are called disproportionation reactions. In electrochemical cells, redox reaction is involved, i.e., oxidation takes place at anode and reduction at cathode. Select the correct statement:

ALLEN-REDOX REACTIONS-EXERICSE - 4
  1. Assertion :- Oxidation state of Hydrogen is +1 in H(2)O while -1 in Ca...

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  2. Assertion :- Oxidation number of carbon in CH(2)O is zero. Reason :-...

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  3. Assertion :- Nitrous acid (HNO(2)) may act as an oxidising agent as we...

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  4. Assertion :- Oxidation number of Ni in [Ni(CO)(4)] is zero. ltbr. Reas...

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  5. Assertion :- A reducing agent is a substance which accepts electron. ...

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  6. Assertion :- Bromide ion is serving as a reducing agent in the reactio...

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  7. Assertion :- Equivalent weight of NH(3) in the reaction N(2) rarrNH(3)...

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  8. Assertion :- In acidic medium, equivalent weight of K(2)Cr(2)O(7) is e...

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  9. Assertion :- In a redox reaction, the oxidation number of the oxidant ...

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  10. STATEMENT-1 : H(2)SO(4) can not act as reducing agent. STATEMENT-2 :...

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  11. Assertion :- In HClO(4), Chlorine has the oxidation number of +4. Re...

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  12. Assertion :- Oxidation number of S in HSO(3)^(-) is +4. Reason :- Su...

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  13. Assertion :- Oxidation number of Carbon in all it's compounds is +4. ...

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  14. Assertion :- H(2) is the reducing agent and Cl(2) is reduced in the re...

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  15. Assertion :- MnO(4)^(-) is always reduced to Mn^(+2). Reason :- Decr...

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  16. Asserton :- KClO(3)rarrKClO(4)+KCl This is a disporportionation type...

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  17. Assertion :- Oxidation number of Cr in CrO(3) is +6. Reason :- In Cr...

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  18. Assertion :- Oxidation number of Cr in Cr(CO)(6) is zero. Reason :- ...

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  19. Assertion :- Cr^(+2) is a reducing agent and Mn^(+3) is oxidising agen...

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  20. Asserton :- The formal oxidation no. of sulphur in Na(2)S(4)O(6) is 2....

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