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JEE Main 2008 Chemistry question

ChemistryThermodynamicsJEE Main 2008

Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below: \frac12Cl_2(g) \xrightarrow{\frac12\Delta_{diss}H^\ominus} Cl(g) \xrightarrow{\Delta_{eg}H^\ominus} Cl^-(g) \xrightarrow{\Delta_{hyd}H^\ominus} Cl^-(aq). The energy involved in the conversion of to (using the data, , , ) will be

Answer: (2)

Solution

For the complete conversion (the process measuring oxidising power in solution): $Missing argument for \frac\frac12(240) + (-349) + (-381) = 120 -

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Question ID VK-039044