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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
1
Medium
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Analyzing
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Assertion(A) Electron gain enthalpy of oxygen is less than that of fluorine but greater than that of nitrogen.
Reason(R) Ionisation enthalpy is as follows:
Reason(R) Ionisation enthalpy is as follows:
View answer and explanation
Correct option: C
If (A) is correct and (R) is incorrect.
The correct answer is C (If (A) is correct and (R) is incorrect) because electron gain enthalpy of oxygen is less negative than fluorine but more negative than nitrogen, and the ionization enthalpy order is incorrect.
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