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The electronegativity of the following elements increases in the order
Options
(a) C, N, Si ,P
(b) N, Si, C, P
(c) Si, P, C, N
(d) P, Si, N, C
Correct Answer:
Si, P, C, N
Explanation:
On moving along a period from left to right in periodic table, electrnegativity increases ( due to decrease in size). While on moving downward in a group, electronegativity decreases.
Thus, the correct order of electronegaticity is
Si > P > C > N
(1.8) (2.1) (2.5) (3.0)
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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
- Change in enthalpy for reaction,2H₂O₂ → 2H₂O + O₂
- The alkyl halide is converted into an alcohol by
- 12 g of an alkaline earth metal gives 14.8 g of its nitride .Atomic weight of the
- Using the Gibb’s energy change,ΔG⁰ = +63.3 kJ, for the following reaction
- Which of the following is used in electroplating
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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