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When H(2)O(2) is added to a acidified so...

When `H_(2)O_(2)` is added to a acidified solution of `K_(2)Cr_(2)O_(7)`:

A

solution turns green due to formation of `Cr_(2)O_(3)`.

B

solution turns yellow due to formation of `K_(2)CrO_(4)`

C

a blue coloured compound `CrO(O_(2))_(2)` is formed

D

solution gives green ppt of `Cr(OH)_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 2
  1. which of the following group of ion is paramagnetic in nature:

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  2. Which forms interstitital compouds?

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  3. When H(2)O(2) is added to a acidified solution of K(2)Cr(2)O(7):

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  4. Sodium thiosulphate is used in photography because of its:

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  6. Which of the following is not an actinide?

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  7. The correct statement(s) from among the following is/are? (i). all t...

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  8. Which of the following statements is not correct?

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  9. Total number of 3d-series transition elements contain either 3d^(1) or...

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  10. How many of the following show variable oxidation states in their comp...

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  11. Magnetic moment value for a d-block ion is 4.90 BM determine value of ...

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  12. Determine total number of unpaired electrons in following ions Ti^(3...

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  13. An element of I^(st) transition series X^(+3) have highest magnetic mo...

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  14. Chromite ore is processed through the following sequence In this ...

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  15. KMnO(4)underset(R.A.)overset(H^(+))toMn^(x) KMnO(4)underset(R.A.)ove...

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  16. The no. of electrons satisfying n+l=7 for Lu (atomic number:71)

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  17. Correct statements about transiton metals are that they:

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  18. Transition elements have greater tendency to form complexes because th...

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  19. Which of the following statements are correct?

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  20. The melting point of Zn is lower as compared to those of the other ele...

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