| ⇦ | 
| ⇨ |
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: - The number of hydroxide ions produced by one molecule of sodium carbonate
- Which of the following does not have a metal-carbon bond
- Which one of the following pairs represents stereoisomerism
- In an exothermic reaction(reversible) which of the following has positive value
- Which of the following carbonyls will have the strongest C – O bond
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
- The number of hydroxide ions produced by one molecule of sodium carbonate
- Which of the following does not have a metal-carbon bond
- Which one of the following pairs represents stereoisomerism
- In an exothermic reaction(reversible) which of the following has positive value
- Which of the following carbonyls will have the strongest C – O bond
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