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Cr(2)O(7)^(2-)overset(H^(+))rarrCr^(3+),...

`Cr_(2)O_(7)^(2-)overset(H^(+))rarrCr^(3+)`, Eq. wt. of `Cr_(2)O_(7)^(2-)` is :-

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Cr_(2)O_(7)^(2-)overset(pH=x)rarrCrO_(4)^(2-)overset(pH=y)rarrCr_(2)O_(7)^(2-) x and y can be :

Cr_(2)O_(7)^(2-)overset([H^(+)])rarrCrO_(4)^(-2)overset((H^(+))rarrCr_(2)O_(7)^(2-) Values of (H^(+)) would be respectively :-

In the following redox reactionn, Cr_(2)O_(7)^(2-) + Fe^(2+) to Fe^(3+) + Cr^(3+) 1 mole of Cr_(2)O_(7)^(2-) oxidises.

Find the number of reaction (s) in which no redox change takes place: (a). BaCl_(2)+Na_(2)CrO_(4)overset(CH_(3)COOH)to (b). K_(2)Cr_(2)O_(7)+NaOHto (c). Cr_(2)O_(7)^(2-)+NO_(3)^(-)overset(H^(+))to (d). Cr_(2)O_(7)^(2-)+C_(2)H_(5)Ohoverset(H^(+))to

Cr_(2)O_(7)^(2-)+Xoverset(H^(o+))rarrCr^(3+)+H_(2)O+ "oxidised product" of X, X in the above reaction cannot be

Equivalent weight of K_(2)Cr_(2)O_(7) in the following reaction is Cr_(2)O_(7)^(2-)Fe^(2+) rarr Fe^(3+)Cr^(3+) ( M=molar mass of K_(2)Cr_(2)O_(7) )

RESONANCE-EQUIVALENT CONCEPT & TITRATIONS-APSP (Part-I)
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  8. In the reaction H(2)O(2)^(18)+O(3) to water + oxygen, radioactivity w...

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  14. 40 mL of 0.05 M solution of sodium sesquicarbonate (Na(2)CO(3).NaHCO(...

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  15. In the following reaction 2MnO(4^(-))+5H(2)O(2)^(18)+6H^(+)rarr2Mn^(2+...

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  16. One gram equimolecular mixture of Na(2)CO(3) and NaHCO(3)is reacted wi...

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

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  18. Equivalent weight of chlorine molecule in the equation is : 3Cl(2)+6...

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  19. Cr(2)O(7)^(2-)overset(H^(+))rarrCr^(3+), Eq. wt. of Cr(2)O(7)^(2-) is ...

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  20. One mole of acidified K(2)Cr(2)O(7) on reaction with excess of KCl wil...

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