JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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\mathrm{O}_2

undergoes photochemical dissociation into one normal oxygen atom and one oxygen atom, 1.2

\mathrm{eV}

more energetic than normal. The dissociation of

\mathrm{O}_2

into two normal atoms of oxygen requires

482.5 \mathrm{~kJ} / \mathrm{mol}

. The maximum wavelength effective for photochemical dissociation of

\mathrm{O}_2

(1 \mathrm{eV}=

96.5 \mathrm{~kJ} / \mathrm{mol}

)

View answer and explanation

Correct option: D

200 \mathrm{~nm}

Option D (200 nm) is correct because it is calculated by finding the total energy required for dissociation and then using that energy to determine the maximum wavelength.

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