The correct order of electron gain enthalpy is:

Question:

The correct order of electron gain enthalpy is:

  1. $\mathrm{S}>\mathrm{Se}>\mathrm{Te}>\mathrm{O}$

  2. $\mathrm{O}>\mathrm{S}>\mathrm{Se}>\mathrm{Te}$

  3. $\mathrm{S}>\mathrm{O}>\mathrm{Se}>\mathrm{Te}$

  4. $\mathrm{Te}>\mathrm{Se}>\mathrm{S}>\mathrm{O}$

Correct Option: 1

Solution:

Electron gain enthalpy of $\mathrm{O}$ is very low due to small size.

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