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Chemistry · Classification of Elements and Periodicity in Properties
हिन्दीMatch List-I with List-II: List-I List-II A Shielding/Screening effect I Reduction of effective nuclear charge experienced by valence electrons B Electron gain enthalpy of Oxygen II Less negative than that of Sulfur due to strong interelectronic repulsion in small \( n=2 \) shell C Pauling electronegativity of Fluorine III Assigned an arbitrary value of \( 4.0 \) D Diagonal relationship IV Similarity in properties between diagonally adjacent elements like Li and Mg Choose the correct answer from the options given below:
Match List-I with List-II:
| List-I | List-II | ||
|---|---|---|---|
| A | Shielding/Screening effect | I | Reduction of effective nuclear charge experienced by valence electrons |
| B | Electron gain enthalpy of Oxygen | II | Less negative than that of Sulfur due to strong interelectronic repulsion in small \( n=2 \) shell |
| C | Pauling electronegativity of Fluorine | III | Assigned an arbitrary value of \( 4.0 \) |
| D | Diagonal relationship | IV | Similarity in properties between diagonally adjacent elements like Li and Mg |
Choose the correct answer from the options given below:
View Answer & Solution
Correct answer · Option C
A-(I), B-(II), C-(III), D-(IV)
Explanation
All listed definitions and values directly correspond to their standard textbook descriptions in periodic properties: shielding reduces effective nuclear charge, oxygen has less negative electron gain enthalpy than sulfur, fluorine is assigned 4.0 electronegativity, and diagonal relationship shows similar properties between Li-Mg.
