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Which of the following is colourless?...

Which of the following is colourless?

A

`[Zn(H_(2)O)_(6)]^(2+)`

B

`[V(H_(2)O)_(6)]^(2+)`

C

`[Mn(H_(2)O)_(6)]^(3+)`

D

`[Fe(H_(2)O)_(6)]^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
`[Zn(H_(2)O)_(6)]^(2+)`
oxidation state of `Zn=+2` having electronic configuration `=[Ar]3d^(10)` All electrons are paired, thus colourless.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. Spin-only' formula to calculate magnetic moment is expressed as

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  2. Among the given optins the most dense element is

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  3. Which of the following is colourless?

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  4. Atomic number of an element is 26. the element shows

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  5. Which of the following species is/are paramagnetic? Fe^(2+),Zn^(0),H...

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  6. What is the correct roder of spin only magnetic moment (in BM) of Mn^(...

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  7. The coordination number in a/an….. Complex may increase to 8.

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  8. The spin only magnetic moment of Mn^(4+) ion is nearly

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  9. Mercury is a liquid metal because

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  10. The highest oxidation state exhibited by a transition metal is

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  11. The magnetic moment of a transition metal ion is 3.87BM. The number of...

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  12. The one which has incompletely filled d-orbitals in its ground state o...

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  13. (n-1)d^(10)ns^(2)is the electronic configuration of

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  14. When an electron from a lower energy d-orbital is excited to a higher ...

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  15. Select the correct order of sizes for the following d-block elements.

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  16. In an aqueous solution, Cu(+1) salts are unstable because

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  17. Which of the following pairs has the same size ?

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  18. Which of the following statements concerning transition elements is fa...

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  19. Which of the following is expected to be coloured?

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  20. Out of Cu^(2+),Ni^(2+),Co^(2+) and Mn^(2+) those dissolved in dil. HCL...

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