JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
For electron gain enthalpies of the elements denoted as \(\Delta_{ eg } H\), the incorrect option is :
- A \(\Delta_{ eg } H ( Cl ) < \Delta_{ eg } H ( F )\)
- B \(\Delta_{ eg } H ( Se ) < \Delta_{ eg } H ( S )\)
- C \(\Delta_{ eg } H (I) < \Delta_{ eg } H (At)\)
- D \(\Delta_{ eg } H ( Te ) < \Delta_{ eg } H\) (Po)
Answer & Solution
Correct Answer
(B) \(\Delta_{ eg } H ( Se ) < \Delta_{ eg } H ( S )\)
Step-by-step Solution
Detailed explanation
\((1)\) \(\Delta_{ eg } H ( Cl ) < \Delta_{ eg } H ( F )\) \((-345) (-328)\) Correct \((2)\) \(\Delta_{ eg } H ( Se ) < \Delta_{ eg } H ( S )\) \((-195) \quad(-200)\) Incorrect \((3)\) \(\Delta_{ eg } H (I) < \Delta_{ eg } H ( At )\) \((-295) (-270)\) Correct \((4)\)…
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