Q9 / 160 · TS EAMCET 2006 · Chemistry

Which of the following statements is not correct?

  • Correct answer
    A
    In oxyhaemoglobin $\mathrm{Fe}^{2+}$ is paramagnetic
  • B
    During respiration the size of $\mathrm{Fe}^{2+}$ increases when it changes from diamagnetic to paramagnetic state.
  • C
    Four heme groups are present in haemoglobin
  • D
    Heme is the prosthetic group and it is non-protein part.

Solution

In oxyhaemoglobin $\mathrm{Fe}^{2+}$ is not paramagnetic.

Hence, the correct answer is option: 'A'.

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