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Which of the following statements is cor...

Which of the following statements is correct regarding redox reactions ?

A

An increase in oxidation number of an element is called reduction

B

A decrease in oxidation number of an element is called oxidation.

C

A reagent which lowers the oxidation number of an element in a given substance is reductant.

D

A reagent which increases the oxidation number of an element in a given substance is reductant .

Text Solution

Verified by Experts

The correct Answer is:
C
A reagent which lowers the oxidation number of an element in a given substance is reducing agent of reductant.
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NCERT FINGERTIPS-REDOX REACTIONS-Oxidation Number
  1. A compound contains atoms A, B and C. the oxidation number of A is +2,...

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  2. Consider the following reactions, (I) 2Mn(2)O(7) rarr 4MnO(2) + 3O(2...

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  3. Which of the following statements is correct regarding redox reactions...

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  4. In the reacion , 3Br(2)+6CO(3)^(2-)+3H(2)Orarr5Br^(-)+BrO(3)^(-)+6HC...

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  5. Given below is a redox reaction. Which of the following types the rea...

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  6. Identify the oxidant the reductant in the following reaction. Cl(2)...

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  7. Which of the following is a disproportionation reaction?

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  8. Match the column I with column II with the type of reaction and mark t...

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  9. Which of the following is not an example of disproportionation reactio...

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  10. White phosphorus reacts with caustic soda to form PH(3) and NaH(2) PO(...

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  11. What is the oxidation number of carbon in C(3)O(2) ( carbon suboxide )...

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  12. The oxidation number of Cr in CrO(5) which has the following structur...

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  13. In the conversion of Br2 to BrO3^(-) , the oxidation state of Br chan...

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  14. Permanganate (VII) ion, MnO(4)^(-) oxidises I^(-) ion to I(2) and giv...

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  15. Choose correct statements (s) regarding the following reactions. Cr(...

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  16. The Mn^(3+) ion is unstable in solution and undergoes disproportionati...

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  17. The number of moles of KMnO(4) reduced by 1 "mol of" KI in alkaline me...

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  18. Balance the following equation by oxidation number method: K(2)Cr(2)...

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  19. Which will be the value of x, y and z in the following equaton. xI(2...

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  20. The number of electrons involved in the conversion of MnO(4)^(-) to Mn...

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