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In which triplet each species can act as...

In which triplet each species can act as oxidant and reductant?

A

`H_(2)O_(2),HNO_(2),HClO_(4)`

B

`KNO_(2),SO_(2),H_(2)O_(2)`

C

`HNO_(3),SO_(2),H_(2)SO_(4)`

D

`KMnO_(4),SO_(3),O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
The species in which an element has oxidation number lying in between its minimum and maximum values can acts as oxidant and reductant both.
`{:(,"Min","Max".,,),(,Ox.,Ox."No".,,),(N^(3+)"in"HNO_(2),-3,+5,,),(S^(4+)"in"SO_(2),-2,+6,,),(O^(1-)"in"H_(2)O_(2),-2,0,,):}`
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Oxidation is de-electronation whereas reduction is electronation. Oxidants are the substances which oxidise others and reduced themselves. On the other hand reductants are the substances which reduce others and oxidised themselves. The oxidation number of an element in a compound decides its nature to act as oxidant or reductant. Oxidation-reduction occur simultaneously and the overal chemical change is called redox reaction. Redox reactions are of three types : (i) Intermolecular erdox reactions, (ii) Auto-redox or disproportionation reaction, and (iii) Intramolecular redox reactions. Select the species which can act as oxidant and reductant both : (I) H_(2)SO_(3) , (II) H_(2)O_(2) , (III) O_(3) , (IV) HNO_(3) , (V) Cl_(2)

Select the species, which act as oxidant and reductant in the given reaction . PCl_(3) + Cl_(2) to PCl_(5)

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The equivalent weight of a species if acts as oxidant or reductant should be derived by : Eq. weight of oxidant or reductant = ("Mol. wt. of oxidant or reductant")/{("Number of electrons lost or gained by one"),("moleculae of oxidant or reductant"):} During chemical reactions, equal equivalents of one species react with same number of equivalents of other species giving same number of equivalent of products. However this is not true for reactants if they react in terms of moles. Also Molarity can be converted to normality by multiplying the molarity with valence factor or 'n' factor. Equivalent weight of N_(2) and NH_(3) in the change N_(2)rarrNH_(3) respectively is:

The equivalent weight of a species if acts as oxidant or reductant should be derived by : Eq. weight of oxidant or reductant = ("Mol. wt. of oxidant or reductant")/{("Number of electrons lost or gained by one"),("moleculae of oxidant or reductant"):} During chemical reactions, equal equivalents of one species react with same number of equivalents of other species giving same number of equivalent of products. However this is not true for reactants if they react in terms of moles. Also Molarity can be converted to normality by multiplying the molarity with valence factor or 'n' factor. Equivalent weight of Fe_(2)O_(3) in terms of its mol. weight in the change Fe_(3)O_(4)rarrFe_(2)O_(3) is

The equivalent weight of a species if acts as oxidant or reductant should be derived by : Eq. weight of oxidant or reductant = ("Mol. wt. of oxidant or reductant")/{("Number of electrons lost or gained by one"),("moleculae of oxidant or reductant"):} During chemical reactions, equal equivalents of one species react with same number of equivalents of other species giving same number of equivalent of products. However this is not true for reactants if they react in terms of moles. Also Molarity can be converted to normality by multiplying the molarity with valence factor or 'n' factor. One mole of As_(2)S_(3) is oxidised by HNO_(3) to H_(3)AsO_(4) and H_(2)SO_(4).HNO_(3) is converted into NO . The moles of HNO_(3) required are:

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Select the species which is an oxidant?

P BAHADUR-REDOX REACTIONS-Exercise 3(A) Objective problems
  1. The average oxidation number of I in KI(3), Fe in Fe(3)O(4) are respec...

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  2. The correct name for NO(2) using stock notation is :

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  3. The values of X, Y and Zs in the reaction are repectively: XMnO(4)^(...

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  4. In which of the following metal atom has negative oxidation satate? ...

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  5. The value of x in the partial redox equation MnO(4)^(-)+8H^(+)+xe hA...

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  6. The composition of a sample of Wustite is Fe(0.93)O(1.00). What percen...

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  7. In which triplet each species can act as oxidant and reductant?

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  8. Four Cl(2) molecules undergo a loss and gain of 6 "mole" of electrons...

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  9. Which species are oxidised and reduced in the reaction? FeC(2)O(4)+K...

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

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  11. 3 mole of FeSO(4) are oxidised by a mole of KMnO(4) in acidic medium w...

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  12. Which of the following is not disproportionation (or auto redox) react...

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  13. Which of the following is not intramolecular redox raction?

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  14. Which of the following is intermolecular redox change?

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  15. The oxides which cannot act as reductant: (I) CO(2) (II) SO(3) (III)...

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  16. Equivalent weight of (NH(4))(2)Cr(2)O(7) in the changes is: (NH)(4)C...

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  17. Which one is not observed in the reaction? KO(2)+H(2)O+CO(2)rarrKHCO...

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  18. The [CrO(4)^(2-)] ions are equilibrium for the reaction, Cr(2)O(7)^(...

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  19. 1 litre solution of unknown molarity is titrated by taking its 50 mL s...

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  20. What happen when a solution of potassium chromate is treated with an e...

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