MCQ
Most reactive for ${{S}_{{{N}^{1}}}}$ reaction is
- A

- ✓

- C

- D$(CH_3)_3C-Cl$




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$(I)$ As wavelength decreases, the lines in the series converge
$(II)$ The integer $n_{1}$ is equal to $2$
$(III)$ The lines of longest wavelength corresponds to $\mathrm{n}_{2}=3$
$(IV)$ The ionization energy of hydrogen can be calculated from wave number of these lines


