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Cr2O7^(2-) changes to Cr^(3+) the amount...

`Cr_2O_7^(2-)` changes to `Cr^(3+)` the amount of electricity need is ?

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At pH=12,Cr_(2)O_(7)^(2-) changes to:

When 0.1 mole Cr_(2)O_(7)^(-2) is oxidised then quantity of elecricity required to completely oxidise Cr_(2)O_(7_^(-2)) to Cr^(+3) is :-

Consider the reaction : Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-) to 2Cr^(3+)+7H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mole of Cr_(2)O_(7)^(2-) ions ?

K_(2)Cr_(2)O_(7)//H^(+) changes to green by

Consider the reaction : Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-) rarr 2Cr^(3+)+7H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mol e of Cr_(2)O_(7)^(2-) ?

Consider the reaction Cr_(2)O_(7)^(2-)+14H^(+)6e^(-)rarr2Cr^(3+)+8H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mole of Cr_(2)O_(7)^(2) ?

In a reaction, Cr_(2)O_(7)^(2-) is reduced to Cr^(3+) . What is concentration of 0.1M K_(2)Cr_(2)O_(7) in equivalent per litre? Cr_(2)O_(7)^(2-)+14H^(+)+6erarr2Cr^(3+)+7H_(2)O

JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
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  2. Statement I : Mg reduceds Al2O3 below 1350^oC and Al reduces MgO after...

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  3. Cr2O7^(2-) changes to Cr^(3+) the amount of electricity need is ?

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  4. Most Stable lanthanide in divalent form

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  5. Aniline React with Br2 + H2O then NaNO2, H3PO2 find final Product ?

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  6. The Stablity of alpha-Helix structe of Protein is due to

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  7. Which of the following is not correct

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  8. For 2 mole pf an ideal mono atomic gas at 300K calculate internal ener...

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  9. Out of N2O3 , N2O4 , N2O5 and NO2 how many of them contain N-N bond ?

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  10. Photochemical smog :

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  11. Which of the following is a basic oxide ?

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  12. Consider the following complexes [Fe(CN)6]^(3-) , [Fe(CN)6]^(4-) and [...

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  13. there are three isotopes of hydrogen identify the difference between t...

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  14. Which sulfoxide has two different oxidation state of sulphur ?

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  15. When is photochemical smog formed ?

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  16. What is the structure of Zantac ?

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  17. X reacts with Br2 or H2O to give gluconic acid and reacts with HNO3 to...

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  18. FeO + SiO2 = FeSiO3 FeO and FeSiO3 are respectively

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  19. Cl2O7 , Na2O which of these is amphoteric/base/acid/salt ?

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  20. The Basic oxide is

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