Step 1: In the case of degenerate orbitals (such as 2p\(_x\) and 2p\(_y\) orbitals in a hydrogen atom), transitions between them can occur and produce spectral lines. Hence, Statement I is correct.
Step 2: However, Statement II is incorrect. The 2p\(_x\) and 2p\(_y\) orbitals are not degenerate in a real atom due to the presence of the electric field of the atom (i.e., their energies are slightly different).
Thus, the correct answer is that Statement I is true and Statement II is false.
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)

Cobalt chloride when dissolved in water forms pink colored complex $X$ which has octahedral geometry. This solution on treating with cone $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ geometry $X, Y$ and $Z$, respectively, are
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)