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2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
Given below are two statements:

Statement-$I$: The orbitals having same energy are called as degenerate orbitals.

Statement-$II$: In hydrogen atom, $3 \mathrm{p}$ and $3 \mathrm{~d}$ orbitals are not degenerate orbitals.

In the light of the above statements, choose the most appropriate answer from the options given

  • ✓
    Statement-$I$ is true but Statement-$II$ is false
  • B
     Both Statement-$I$ and Statement-$II$ are true.
  • C
     Both Statement-$I$ and Statement-$II$ are false
  • D
     Statement-$I$ is false but Statement-$II$ is true
✓

Answer

Correct option: A.
Statement-$I$ is true but Statement-$II$ is false
a
For single electron species the energy depends upon principal quantum number ' $n$ ' only. So, statement $II$ is false.
Statement $I$ is correct definition of degenerate orbitals.

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