TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Electron gain enthalpy values \(\left(\Delta_{e g} \mathrm{H}\right)\left(\right.\) in \(\left.\mathrm{kJ} \mathrm{mol}^{-1}\right)\) of elements \(\mathrm{X}, \mathrm{Y}\) and Z are \(-349,-200\) and -295 respectively. \(\mathrm{X}, \mathrm{Y}\) and Z are respectively
- A \(\mathrm{Cl}, \mathrm{I}, \mathrm{S}\)
- B \(\mathrm{Cl}, \mathrm{S}, \mathrm{I}\)
- C \(\mathrm{S}, \mathrm{Se}, \mathrm{Te}\)
- D \(\mathrm{Na}, \mathrm{K}, \mathrm{Rb}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Cl}, \mathrm{S}, \mathrm{I}\)
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