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The energy required to break one mole of...

The energy required to break one mole of `Cl-Cl` bonds in `Cl_2` is `242 kJ mol^-1`. The longest wavelength of light capable of breaking a since `Cl-Cl` bond is

A

`494nm`

B

`594nm`

C

`640nm`

D

`700nm`

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The correct Answer is:
A
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