| ⇦ |
| ⇨ |
Which of the following order of element is wrong?
Options
(a) NH₃ < PH₃< AsH₃– Acidic
(b) Li < Be < B < C – First IP
(c) Al₂O₃< MgO < Na₂O < K₂O – Basic
(d) Li⁺< Na⁺< K⁺< Cs⁺ – Ionic radius
Correct Answer:
Li < Be < B < C – First IP
Explanation:
Along the period, I.P. generally increases butnot regularly. Be and B are exceptions. First I.P. increases in moving from left to right in a period, but I.P. of B is lower than Be
Related Questions: - ‘Metals are usually not found as nitrates in their ores”. Out of the following two
- Which of the following has sp²-hybridisation
- The correct order of ionization energy of C, N, O, F is
- Which of the following is not a ferromagnetic substance
- Number of isomers of C₄H₁₀ is
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
- ‘Metals are usually not found as nitrates in their ores”. Out of the following two
- Which of the following has sp²-hybridisation
- The correct order of ionization energy of C, N, O, F is
- Which of the following is not a ferromagnetic substance
- Number of isomers of C₄H₁₀ is
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.
Share this page with your friends

Leave a Reply