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Which of the following does not give oxy...

Which of the following does not give oxygen on heating ?

A

`KClO_(3)`

B

`Zn(ClO_(3))_(2)`

C

`K_(2)Cr_(2)O_(7)`

D

`(NH_(4))_(2)Cr_(2)O_(7)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(NH_(4))_(2)Cr_(2)O_(7) overset(Delta)(rarr)Cr_(2)O_(3) + n_(2)+ 4H_(2)O`
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PRADEEP-D- AND F-BLOCK ELEMENTS-COMPETITIONS FOCUS
  1. In which of the following ions, the colour is not due to d-d transitio...

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  2. The bonds present in the structure of dichromate ion are

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  3. Which of the following does not give oxygen on heating ?

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  4. Identify the product and the colour when MnO(2) is fused with solid KO...

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  5. KMnO(4) can be prepared from K(2)MnO(4) as per the reaction 3MnO(4)^...

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  6. When a mananous salt is fused with a mixture of KNO(3) and and solid N...

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  7. In acidic medium MnO(4)^(2-)

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  8. The coloured spot ofKMnO(4) on any article can be bleached by

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  9. MnO(4)^(-) reacts with Br^(-) in alkaline pH to give

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  10. Amount of oxalic acid present in a solution can be determined by its t...

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  11. An explosion takes place when conc. H(2)SO(4) is added to KMnO(4) due ...

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  12. KMnO(4)gets reduced to

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  13. The colour of KMnO(4) is due to

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

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  15. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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  16. Name the gas that can readily decolourise acidified KMnO(4) solution:

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  17. Gadolinium belongsd to 4f series. It's atomic number is 64. which of t...

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  18. The electronic configuration of Eu (Atomic No. 63), Gd (Atomic No. 64)...

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  19. Cerium (Z= 58) is an important nember of the lanthanoids . Which of th...

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  20. The atomic number of cerium (Ce) is 58. The correct electronic con...

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