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Which of the following is red in colour?...

Which of the following is red in colour?

A

`Cu_(2)O`

B

`CuF`

C

`ZnF_(2)`

D

`ZnCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Most of the cuprous compounds are usually colourless and diamagnetic as 3d-orbital is completely filled `(Cu^(+)rarr3d^(10)). Cu_(2)O` is exception and is red in colour.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. Which of the following element does not belong to 4d series of transit...

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  2. Number of unpaired electrons in Mn^(3+) is

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  3. Which of the following is red in colour?

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  4. Copper exhibits only +2 oxidation state in its stable compounds. Why?

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  5. A transition element X has a configuration [Ar] 3d^(4) in its + 3 oxi...

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  6. Which of the following ions has a magnetic moment of 5.93 BM? (Atomic ...

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  7. Which of the 3d-seres of the transition metals exhibits the largest nu...

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  8. Consider the following statements about transition metals.

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  9. Spin-only' formula to calculate magnetic moment is expressed as

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  10. Among the given optins the most dense element is

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  11. Which of the following is colourless?

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

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

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

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

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

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  17. Mercury is a liquid metal because

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

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

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

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