MCQ
In ${H_2}{O_2}$, the two oxygen atoms have
- AElectrovalent bond
- ✓Covalent bond
- CCoordinate bond
- DNo bond

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$\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_2} - Br}\\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
{{C_2}{H_5}\,\,\,\,\,\,\,\,\,}
\end{array}$
| Column $I$ | Column $II$ |
| $(A)$ Orbital angular momentum of the electron in a hydrogen-like atomic orbital | $(p)$ Principal quantum number |
| $(B)$ A hydrogen-like one-electron wave function obeying Pauli principle | $(q)$ Azimuthal quantum number |
| $(C)$ Shape, size and orientation of hydrogen-like atomic orbitals | $(r)$ Magnetic quantum number |
| $(D)$ Probability density of electron at the nucleus in hydrogen-like atom | $(s)$ Electron spin quantum number |
