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The oxidation state of chromium in dichr...

The oxidation state of chromium in dichromate ion `(Cr_2O_7^(2-))` and chromate ion `(CrO_4^(2-))` is

A

`+ 4 `

B

`+7 `

C

`+ 5`

D

`+ 6`

Text Solution

Verified by Experts

The correct Answer is:
D
Hint : `+6` oxidation state.
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ACCURATE PUBLICATION-D & F BLOCK ELEMENTS -2 OR 5 MARKS QUESTIONS
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  3. What are the characteristics of the transition elements ?

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  4. In what way is the electronic configuration of transition elements dif...

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  8. [Ti (H2O)6]^(3+) is coloured while [Sc(H2O)6]^(3+) is colourless. Expl...

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  9. Explain why TiCl3 is coloured but TiCl4 is colourless ?

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  10. Explain why [Ti (H2O)6]^(3+) is violet while [Ti (H2O)6]^(4+) is colou...

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  11. Why Cd^(2+) salts are white ? Cd=48

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  12. Which of the two is paramagnetic V(IV) or V(V) and why ?

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