Which of the following attain the linear structure?
[1
BeCl2 and NCO+
BeCl2 and CS2
BeCl2 and NO2
CS2 and NCO+
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Answered by
2
Answer:
The answers are A,B and D, because:
CS2: there are two sulfur atoms bonded to a central carbon atom and the central atom has no lone electron pairs
NO2: nitrogen dioxide has an unpaired electron so it isn't a linear molecule
BeCl2: beryllium chloride is linear (central atom has no lone electron pairs)
NCO+ cation is linear,
Answered by
1
The correct answer to the above question is B and that are linear structures are attained by BeCl₂ and CS₂.
- BeCl₂ has sp hybridization and has a linear structure containing 2 bonding pairs of electrons which get far away from each other to minimize the repulsion, giving the bond angle of 180⁰. So, it attains a linear structure.
- CS₂ has sp hybridization. Carbon in the center has two sulfur atoms forming the bond angle of 180⁰, making the molecular structure of the CS₂ molecule linear.
- NCO+ has a nonlinear structure.
- NO₂ has sp₂ hybridization. There are no unpaired electrons, so repulsion is minimized by 180⁰, so its structure is bent.
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