The correct answer is [A] Nitrogen

• The most electronegative element among Arsenic, Nitrogen, and Phosphorus is Nitrogen.
• In chemistry, electronegativity is a measure of an atom’s ability to attract electrons to itself.
• Fluorine is the most electronegative element, with a value of 4.0 on the Pauling scale.

Additional Information

1. Nitrogen is more electronegative than Arsenic and Phosphorus, with a value of 3.04 on the Pauling scale.
2.  Phosphorus has an electronegativity of 2.19 on the Pauling scale, which is less than Nitrogen.
3.  Arsenic has an electronegativity of 2.18 on the Pauling scale, which is less than Nitrogen.
4.  All these elements have different electronegativity values, so they cannot be considered as having equal electronegativity.

So the correct answer is [A] Nitrogen