| ⇦ | 
| ⇨ |
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 equivalent weight of H₃PO₂, when it disproportionates into PH₃ and H₃PO₃ is
- Fischer-Tropsch process is used in the manufacture of
- An aqueous solution of CoCl₂ on addition of excess of concentration HCl
- In metal carbonyl having general formula M(CO)x where M = metal, x = 4 and the
- Which of the following is a strong acid
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 equivalent weight of H₃PO₂, when it disproportionates into PH₃ and H₃PO₃ is
- Fischer-Tropsch process is used in the manufacture of
- An aqueous solution of CoCl₂ on addition of excess of concentration HCl
- In metal carbonyl having general formula M(CO)x where M = metal, x = 4 and the
- Which of the following is a strong acid
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