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Transition elements form binary compound...

Transition elements form binary compounds with halogens. Which of the following elements will form `MF_(3)` type compounds?

A

Cr

B

Co

C

Cu

D

Ni

Text Solution

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The correct Answer is:
A, B
Transition elements such as Cr and Co form binary compounds with halogens, i.e., `CrF_(3)` and `CoF_(3)` whereas Cu and Ni do not form `CuF_(3)` and `NiF_(3)`.
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NCERT EXEMPLAR-D AND F-BLOCK ELEMENTS-D And F-Block Elements
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  8. Why first ionisation enthalpy of Cr is lower than that of Zn?

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  9. Transition elements show high melting points. Why?

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  14. Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...

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  16. Although Zr belongs to 4d and Hf belongs to 5d transition series but i...

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  18. Explain why does colour of KMnO(4) disappear when oxalic acid is added...

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  19. When orange solution containing Cr(2)O(7)^(2-) ion is treated with an ...

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  20. A solution of KMnO(4) on reduction yields either a colourless solution...

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