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in which of the following transition met...

in which of the following transition metal complexes does the metal exhibits zero oxidation state.

A

`[Co(NH_3)_6]Cl_3`

B

`[Fe(H_2O)_6]SO_4`

C

`Ni(CO)_4`

D

`[Fe(H_2O)_6]X_3`

Text Solution

Verified by Experts

The correct Answer is:
C
(c) In metal carbonyls metal always has O.N. zero.
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DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-1 : CONCEPT BUILDER ( TOPICWISE )
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  2. The oxidation state of chromium in the final product formed by the rea...

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  4. In which of the following compounds , the oxidation number of iodine i...

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  5. The oxide which cannot act as reducing agent is

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  6. The oxidation number of an element in a compound is evaluated on the b...

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  7. The oxidation states of the most electronegative elements in the produ...

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  8. Which of the following statements is not correct?

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  9. The3ClO^(-)(aq.)to ClO(3)^(-)(aq.)+2Cl^(-)(aq.) is an example of

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  10. For the reaction : NH3 + OCI^(-) rarr N2H4 + Cl^(-) in basic medium, t...

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  11. Which of the following reactions involve disproportionation ?

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  12. In a balanced equation H(2)SO(4)+xHI rarr H(2)S+YI(2)+zH(2)O, the valu...

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  13. KMnO4 oxidises oxalic acid in acidic medium. The number of CO2 molecul...

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  14. In the chemical reaction, K2 Cr2 O7 + xH2 SO4 + ySO2 rarr K2SO4 + Cr2(...

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  15. Consider the following reaction 5H2O2 +XCIO2 +2OH^(-) rarr XCI^(-)- + ...

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  16. Number of moles of K2Cr2O7 reduced by one mole of Sn^(2+) ion is

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  17. Which of the following statements is not correct?

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  18. The species that undergoes disproportionational is an alkaline medium ...

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  19. What products are expected from the desproprtionation reactin of hypoc...

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  20. Which is the best description of the behaviour of bromine in the react...

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