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The compounds of Zn, Cd and Hg are usual...

The compounds of Zn, Cd and Hg are usually white.
(ii) A dark blue precipitate is formed when NaOH solution is added to `CuSO_(4)`

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**Step-by-Step Solution:** 1. **Understanding the Color of Compounds of Zn, Cd, and Hg:** - The compounds of zinc (Zn), cadmium (Cd), and mercury (Hg) are usually white. This is because these elements have a full d-orbital configuration when they are in their common oxidation states (Zn²⁺, Cd²⁺, and Hg²⁺). - The electronic configurations for these ions are: - Zn²⁺: [Ar] 3d¹⁰ - Cd²⁺: [Kr] 4d¹⁰ - Hg²⁺: [Xe] 4f¹⁴ 5d¹⁰ ...
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Explain the following: (i). Copper hydroxide is soluble in ammonium hydroxide but not in sodium hydroxide. (ii). A dark blue precipitate is formed when sodium hydroxide solution is added to copper sulphate solution. The precipitate darkens on heating.

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FIITJEE-TRANSITION ELEMENTS & COORDINATION COMPOUNDS-SOLVED PROBLEMS(SUBJECTIVE)
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  2. Account for the following: Co(ll) is stable in aqueous solution but in...

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  3. The compounds of Zn, Cd and Hg are usually white. (ii) A dark blue pr...

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  6. Identify the complexes expected to be coloured and explain Ti(NO(3))(4...

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  7. Give evidence that [Co(NH(3))(5) CI] SO(4) Clare ionization isomers

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  8. Nicl(4)]^(2-) is paramagnetic while [Ni(CO(4))] is diamagnetic though ...

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  9. [Fe(H(2)O(6)]^(3+) is strongly paramagnetic whereas [Fe(CN)(6)]^(3-) i...

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  10. Explain (Co(NH(3))(6)]^(3+) is an inner orbital complex whereas [NI(NH...

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  12. What is the coordination entity formed when excess of aqueous KCN is a...

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  13. A solution of [Ni(H(2)O(6)]^(2+) is green but a solution of [Ni(CN)(4)...

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  14. [Fe(CN)(6)]^(4-) and [Fe(H(2)O)(8)]^(2+) are of different colours in d...

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  15. Amongst the following ions, which one has the highest magnetic moment ...

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  16. Fe^(3+)overset(SCN^(-)(excess))to "blood red"(A)overset(F^(-)(excess))...

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  18. Nickel chloride, when treated with dimethyl gyloxime in presence of am...

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  19. Write the IUPAC nomenclature of the given complex along with its hybri...

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  20. Deduce the structure of [Nicl(4)]^(2) and [Ni(Cl(4)]^(2-) considering ...

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