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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
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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
- When 2-bromobutane reacts with alcoholic KOH, the reaction is called
- Give cyclohexanol(I), acetic acid (II), 2,4,6-trinitrophenol(III),and phenol(IV)
- An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in
- If pH of a saturated solution of Ba(OH)₂ is 12, the value of its Ksp is
- What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgNO₃
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
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