| ⇦ | 
| ⇨ |
In which of the following pairs of molecules/ions, the central atoms have sp²-hybridisation?
Options
(a) NO₂⁻ and NH₃
(b) BF₃ and NO₂⁻
(c) NH₂⁻ and H₂O
(d) BF₃ and NH₂⁻
Correct Answer:
BF₃ and NO₂⁻
Explanation:
For sp² -hybridisation, there must be 3 σ bonds or 2 σ bonds along with a lone pair of elctrns.
NO₂⁻ ⇒ 2σ + 1/p = 3 i.e.,sp² -hybridisation
NH₃ ⇒ 3σ + 1/p = 4 i.e.,sp³ -hybridisation
BF₃ ⇒ 3σ + 0/p = 3 i.e.,sp² -hybridisation
NH₂⁻ ⇒ 2σ + 2/p = 4 i.e.,sp³ -hybridisation
H₂O ⇒ 2σ + 2/p = 4 i.e.,sp³ -hybridisation
Thus, among the given pairs, only BF₃ and NO₂⁻ have sp² -hybridisation
Related Questions: - The oxidation state of I in H₄IO₆⁻ is
- A gas such as carbon monoxide would be most likely to obey the ideal gas law at
- Which of the following shows geometrical isomerism
- The species Ar,K⁺ and Ca²⁺ contain the same number of electrons.
- The number of water molecules in gypsum and in plaster of paris are respectively
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Chemical Bonding and Molecular Structure
(86)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The oxidation state of I in H₄IO₆⁻ is
- A gas such as carbon monoxide would be most likely to obey the ideal gas law at
- Which of the following shows geometrical isomerism
- The species Ar,K⁺ and Ca²⁺ contain the same number of electrons.
- The number of water molecules in gypsum and in plaster of paris are respectively
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Chemical Bonding and Molecular Structure (86)
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