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Name the indicator and the colour change...

Name the indicator and the colour change at the end point in titration of `Fe^(2+)` against `Cr_2O_7^(2-)` in an acidic medium.

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Indicator is diphenyl amine. At the end point, the green solution suddenly turns violet.
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SUBHASH PUBLICATION-REDOX REACTIONS-Two Mark Question
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  2. Identify the oxidant and the reductant in the following chemical react...

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  3. Name the indicator and the colour change at the end point in titration...

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  4. Explain combination redox reaction in the burning of carbon.

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  5. Which of the following is the best reducing agent and why? Li,Cu, Br2,...

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  6. Calculate the oxidation number of C in CH2 Cl2

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  7. Calculate the oxidation number of Pb In Pb3 O4

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  8. Explain decomposition of potassium chlorate.

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  9. Explain metal displacement redox reaction of copper sulphate solution ...

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  10. Write non metal redox reaction in alkali and alklaine earth metals?

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  11. How does fluorine reacts with water in a non metal redox reaction?

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  12. Explain disproportionation redox reaction of hydrogen peroxide.

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  13. Explain disproportionation reaction of chlorine and a conc alkali.

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  14. What is the oxidation number of Cr in K2 CrO4

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  15. What is the oxidation number of Ni in Ni(CO)4

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  16. What is the oxidation number of Fe in Fe(CO)5

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  17. What is the oxidation state of S in H2 SO4,

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  18. What is the oxidation state of P in P4,

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  19. What is the oxidation state of P in PH3

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  20. What is the oxidation state of P in H3PO4

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