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In a chemical reaction, K(2)Cr(2)O(7)+xH...

In a chemical reaction, `K_(2)Cr_(2)O_(7)+xH_(2)SO_(4)+ySO_(2) to K_(2)SO_(4)+ Cr(SO_(4))_(3) +zH_(2)O, ` , the value x, y and z respectively are:

A

1, 3, 1

B

4, 1, 4

C

3, 2, 3

D

2, 1, 2

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A
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In the chemical reaction, K_(2)Cr_(2)O_(7)+xH_(2)SO_(4)+ySO_(2)rarrK_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+zH_(2)O x,y, and z are

In the chemical reaction, K_2 Cr_2 O_7 + xH_2 SO_4 + ySO_2 rarr K_2SO_4 + Cr_2(SO_4)_3 + zH_2O, the value of x,y and z respectively are :

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

Balance the equations given below : K_2Cr_2O_7 + H_2SO_4 +SO_2 to K_2SO_4 + Cr_2(SO_4)_3 + H_2O

Taking the example of the reaction K_(2)Cr_(2)O_(7)+H_(2)SO_(4)+FeSO_(4)toK_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+Fe_(2)(SO_(4))_(3)+H_(2)O, explain how a redox reaction is balanced by oxidation number method.

The conversion of K_(2)Cr_(2)O_(7) into Cr_(2)(SO_(4))_(3) is

K_(2)Cr_(2)O_(7) overset(Delta) to K_(2)CrO_(4)+Cr_(2)O_(3)+O_(2)uarr

K_(2)Cr_(2)O_(7) overset(Delta) to K_(2)CrO_(4)+Cr_(2)O_(3)+O_(2)uarr

Cr_(2)O_(7)^(2-)+H^(+)+SO_(3)^(2-) to Cr^(3+)(aq.)+SO_(4)^(2-)

AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-ASSIGNMENT SECTION - A
  1. The oxidation number of sulphur in H(2)S(2)O(8) is:

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  2. In which of the following compounds iron has lowest oxidation number?

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  3. Phosphorus has the oxidation state of +3 in

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  4. The brown ring complex compound is formulated as [Fe(H(2)O)(5)NO]SO(4)...

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  5. Oxidation number of Cr in CrO(5) is

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  6. In which of the following compounds , the oxidation number of iodine i...

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  7. Which reaction involves neither oxidation nor reduction?

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  8. In a chemical reaction, K(2)Cr(2)O(7)+xH(2)SO(4)+ySO(2) to K(2)SO(4)+ ...

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  9. What is the oxidation state of sodium in sodium amalgam (Na//Hg)?

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  10. Which of the following will not be oxidised by O(3) ?

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  11. In alkaline medium , KMnO(4) reacts as follows 2KMnO(4)+2KOH rarr 2K...

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  12. The equivalent weight of FeS(2) in the following reaction is FeS(2)+O(...

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  13. When SO(2) is passed inoto an acidified potassium dichromate soltion, ...

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  14. How many mole of FeSO(4) reacted with one mole of KMnO(4) in acidic me...

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  15. A compound of Xe and F is found to have 53.3% Xe (atomic weight = 133)...

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  16. Which of the following is not correct for electrochemical cell?

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  17. Which of the following is not a redox reaction?

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  18. Redox reaction have no concern with

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  19. n factor of nitrobenzene in this process

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  20. In this process of photosynthesis, which takes place in green plants w...

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