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Acidified K(2)Cr(2)O(7) solution turns g...

Acidified `K_(2)Cr_(2)O_(7)` solution turns green when `Na_(2)SO_(3)` is added to it. This due to the formation of -

A

`Cr_(2)(SO_(4))_(3)`

B

`CrO_(4)^(2-)`

C

`Cr_(2)(SO_(3))_(3)`

D

`CrSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(2)Cr_(2)O_(7)+3Na_(2)SO_(3)+4H_(2)SO_(4)rarr Cr_(2)(SO_(4))_(3)+3Na_(2)SO_(4)+K_(2)SO_(4)+4H_(2)O`
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -ENTRANCE QUESTION BANK
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  2. Which of the following compounds is metallic and ferromagnetic -

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  3. Acidified K(2)Cr(2)O(7) solution turns green when Na(2)SO(3) is added ...

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  4. For the four successive transition elements (Cr, Mn, Fe and Co), the s...

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  5. Four successive members of the first series of the transition metals a...

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  12. Which of the following lanthanoid ions is diamagnetic - (At. Nos. Ce =...

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  13. Reason of lanthanoid contraction is -

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  14. Magnetic moment 2.83 BM is given by which of the following ions - (AT....

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  15. In acidic medium, H(2)O(2) changes Cr(2)O(7)^(2-) to CrO(5) which has ...

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  16. Gadolinium belong to 4f - series. Its atomic number is 64. Which of th...

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  17. Which one of the following statements related to lanthanoids is incorr...

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