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In this reaction SO(2) is (i) SO(2)+2H...

In this reaction `SO_(2)` is
(i) `SO_(2)+2H_(2)S to 3S+3H_(2)O`
(ii) `3SO_(2)+Cr_(2)O_(7)^(2-)+2H^(+) to 2Cr^(3+)+3SO_(4)^(2-)+H_(2)O`

A

oxidizing agent both in (i) and (ii)

B

oxidizing agent in (i) and reducing agent in (ii)

C

reducing agent both in (i) and (ii)

D

reducing agent in (i) and oxidizing agent in (ii)

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The correct Answer is:
B
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Cr_(2)O_(7)^(2-)+H^(+)+SO_(3)^(2-) to Cr^(3+)(aq.)+SO_(4)^(2-)

Complete the chemical reactions : (i) MnO_4^(-) + SO_2 + H^(+) to (ii) S_2O_3^(2-) + Cr_2O_7^(2-) + H^(+) to

H_(2)underline(S_(2))O_(7)+H_(2)O to H_(2)SO_(4)

Balance the following equations by hit and trial method: (a) KMnO_(4) + HCl to KCl + MnCl_(2) + H_(2)O + Cl_(2) (b) H_(2)S + SO_(2) to S + H_(2)O ( c) K_(2)Cr_(2)O_(7) + H_(2)SO_(4) to K_(2)SO_(4) + Cr_(2)(SO_(4))_(2) + H_(2)O + O_(2) (d) KMnO_(4) + KOH to K_(2)MnO_(4) + O_(2) + H_(2)O (e) Mg_(3)N_(2) + H_(2)O to Mg(OH)_(2) + NH_(3) (f) Al_(4)C_(3) + H_(2)O to Al(OH)_(3) + CH_(4) (g) FeS_(2) + O_(2) to Fe_(2)O_(3) + SO_(2) (h) KMnO_(4) + H_(2)S + H_(2)SO_(4) to KHSO_(4) + MnSO_(4) + S + H_(2)O (i) C_(3)H_(8)(g) + O_(2)(g) to CO_(2)(g) + H_(2)O(l)

NIKITA PUBLICATION-P-BLOCK ELEMENT -Competitive Exam
  1. In this reaction SO(2) is (i) SO(2)+2H(2)S to 3S+3H(2)O (ii) 3SO(2...

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  2. In which of the following arrangements, the sequence is not strictly a...

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  3. Each of the following is true for white and red phosphorus except that...

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  4. Which of the following is not known

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  5. Which one of the following elements is most metallic?

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  6. Which of the following oxides of nitrogen is the anhydride of HNO(3)?

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  7. Dissociatuion of H(3)PO(4) occurs in following stages

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  8. Nitrogen forms how many oxides

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  9. The element which catches fire in air at 30^@C and is stored under wat...

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  10. A solution of ammonia in water contains

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  11. Which of the following is oxidised in air?

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  12. Which of the following exist in polymeric form ?

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  13. Which nitrogen trihalides is least basic

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  14. Which of the following oxide of nitrogen is a coloured gas?

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  15. Which oxide does not act as a reducing agent?

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  16. The basic character of hydrides of the 15th-group elements decreases i...

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  17. The strongest base is

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  18. Which has the lowest boiling point?

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  19. Of the following, the most acidic is

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  20. The correct order of the acidic nature of oxides is in the order

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  21. Nitrogen is relatively inactive element because is atom has a stable e...

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