Correct order of first IP among following elements Be, B, C, N, O is

Correct Order Of First Ip Among Following Elements Be B Chemistry Question

Correct order of first IP among following elements Be, B, C, N, O is

Options

(a) B< Be < C (b) B (c) Be (d) Be < B< C< O< N

Correct Answer:

B< Be < C Explanation:

Be – 1s²2s²; B – 1s²2s²2p¹; C – 1s²2s²2p²;N – 1s²2s²2p³;O – 1s²2s²2p⁴. IP increases along the period. But IP of Be > B. Further IP of O < N because atoms with fully or partly filled orbitals are most stable and hence have high ionisation energy.

Related Questions:

  1. The compound that gives both iodoform and Fehling’s tests is
  2. Reaction of a carbonyl compound with one of the following reagents involves
  3. In the complex with formula MCl₃.4H₂O, the coordination number of the metal M
  4. The minimum amount of energy required for the reacting molecules to undergo
  5. Butanenitrile is prepared by heating

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*