The correct option with respect to the Pauling electronegativity values of the elements is:
Classification of Elements & Periodicity · Class 11 · JEE Main Previous Year Question
The correct option with respect to the Pauling electronegativity values of the elements is:
- a
- b✓
- c
- d
🧠 Electronegativity rises left-to-right across a period and drops top-to-bottom in a group — apply both rules to each pair
EN follows the same direction as IE for most elements. The Pauling scale is a quick reference, but you can also reason from the trend.
🗺️ Check each option
(a) : Both Group 16. Se is above Te. EN drops down a group, so Se > Te, not Te > Se. Wrong.
(b) : Both Period 4. Ge is to the right of Ga. EN rises left-to-right. So Ge > Ga, i.e., Ga < Ge. Correct. Pauling values: Ga = 1.81, Ge = 2.01.
(c) : Both Period 3. Si is to the right of Al. EN rises left-to-right. So Si > Al, not Si < Al. Wrong.
(d) : Both Period 3. S is to the right of P. EN rises right. So S > P, not P > S. Wrong.
Only option (b) follows the correct trend.
⚠️ The trap Three of the four options invert the obvious "EN rises across a period" rule, hoping students will not notice. Always check the direction of each inequality against the trend before answering. Right side wins in the same period; top wins in the same group. Both habits should become automatic.
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