Periodic Table

JEE Main level, single correct, medium

1 of 2

Question 1 of 2

The correct order of first ionization enthalpy for group 15 elements is:

Show answer and solution

Answer: (C) Bi<Sb<As<P<NBi < Sb < As < P < N

Ionization enthalpy decreases down the group due to increasing atomic size: N>P>As>Sb>BiN > P > As > Sb > Bi.

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.

More Chemistry practice

JEE Main Chemistry practice question on Periodic Table, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.