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What would happen when a solution of pot...

What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?

A

`Cr_(2)O_(7)^(2_ and H_(2)O` are formed

B

`CrO_(4)^(2-)` is reduced to +3 state of Cr

C

`CrO_(4)^(2)` is oxidised to +7 state of Cr

D

`Cr^(3+) and Cr_(2)O_(7)^(2-)` ar formed.

Text Solution

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The correct Answer is:
A
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 3
  1. Which of the following ions has the maximum magnetic moment in aqueous...

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  2. Most common oxidation state for Ce (Cerium) are:

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  3. What would happen when a solution of potassium chromate is treated wit...

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  4. Which one of the following nitrates will leaves behind a metal on stro...

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  5. The atomic number of Vanadium (V), Chromium (Cr), Magnaness (Mn) and I...

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  6. Which of the following group of transition metals is called coinage me...

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  7. The number of d-electrons retained in Fe^(2+) (At. No Fe=26) ions are:

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  8. Ammonia forms the complex [Cu(NH(3))(4)]^(2+) will copper ions in alka...

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  9. The radius of La^(3+)(Z=57) is 106 pm. Which one of the following give...

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  10. Cerium (Z = 58) is an important member of the lanthanoids. Which of th...

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  11. The lanthanide contraction is responsible for the fact that

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  12. Which of th following factor may be regarded as the main cause of Lant...

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  13. The spin-only magnetic moment [in units of Bohr magneton, (mu(B) of Ni...

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  14. Lanthanoid contraction is caused due to:

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  15. Identify the incorrect statement among the following.

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  16. The actinoids exhibit more number of oxidation states in generals than...

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  17. More number of oxidation states are exhibited by the actinides than th...

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  18. In context with the transition elements, which of the following statem...

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  19. Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 ...

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  20. The correct order of E(M^(2+)//M)^@ value with negative sign for the f...

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