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Among the following, the compound that is both paramagnetic and coloured, is

1. KMnO4
2. CuF2
3. K4[Fe(CN)6]
4. K2Cr2O7

Correct answer: CuF2

Solution

CuF2 is paramagnetic due to the presence of unpaired electrons in the d-orbital of Cu2+ and is also colored because of d-d transitions.

Related NEET Chemistry questions

• Identify the incorrect statement.
• Which one of the following ions exhibits d-d transition and paramagnetism as well?
• Magnetic moment 2.84 B.M. is given by: (At. nos, Ni = 28, Ti = 22, Cr = 24, Co = 27)
• Magnetic moment 2.83 B.M is given by which of the following ions? (At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)
• KMnO4 can be prepared from K2MnO4 as per the reaction: 3MnO4^2− + 2H2O → 2MnO4^− + MnO2 + 4OH^−. The reaction can go to completion by removing OH^− ions by adding:
• Which of the statements is not true?

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