Which of the following electronic transitions requires that the greatest quantity of energy be absorbed by a…

Which of the following electronic transitions requires that the greatest quantity of energy be absorbed by a hydrogen atom ?
  1. $\mathrm{n}=1$ to $\mathrm{n}=2$
  2. $\mathrm{n}=2$ to $\mathrm{n}=4$
  3. $\mathrm{n}=3$ to $\mathrm{n}=6$
  4. $\mathrm{n}=1$ to $\mathrm{n}=\infty$

Solution

$$
\Delta \mathrm{E}=\text { constant }\left[\frac{1}{\mathrm{n}_{1}^{2}}-\frac{1}{\mathrm{n}_{2}^{2}}ight]
$$
Transition with maximum value of $\mathrm{n}_{2}$ and least value of $\mathrm{n}_{1}$ will absorb greatest quantity of energy /

Asked in: JEE-TOPICTESTS-CHEMISTRY

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