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Structure of Atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStructure of Atom1 Mark
MCQ
Which of the following is wrong statement?
  • A
    The uncertainty principle is $\Delta\text{x}.\Delta\geq\frac{\text{h}}{4\pi}.$
  • B
    Half filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.
  • ✓
    The energy of $2s$ orbital is less than the energy of $2p-$ orbitals in case of hydrogen like atoms.
  • D
    de Broglie wavelength, $\lambda=\frac{\text{h}}{2\pi}.$
✓

Answer

Correct option: C.
The energy of $2s$ orbital is less than the energy of $2p-$ orbitals in case of hydrogen like atoms.

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