Total energy of the highly electro negative element for ex…

Chemistry Classification of Elements and Periodicity Valency and Oxidation State Numeric Response

Published on: August 14, 2026

Total energy of the highly electro negative element for example Cl, O, F etc. increases on increase in the oxidation states. The total energy (E) varies with the positive oxidation state (q) as per the emperical relation

E = α q + β q2

where α and β are constants.

(i)What would be the first ionisation energy of chlorine ?

MJ/mol Zero Formation of F2– from F– requires energy.

MJ/mol 0.26 MJ/mol Second electron affinity of F should be more negative than the second electron affinity of oxygen.

MJ/mol 0.13 MJ/mol Between F+ and Cl+, Cl+ is more stable

For Cl, IE cannot be determined as per the given information (ii)For Cl–, if total energy E = – 0.4 MJ/mol then how much energy is required for the conversion of Cl → Cl+ + Cl– ? Equals to ionisation energy of Cl (iii)Which of the following statements is/are correct ? All of the above are correct

Text Solution

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The correct answer is:

0.13

(i)

Sol. MJ/mol

(ii)

Sol. 0.13 MJ/mol

(iii)

Sol. All of the above are correct

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