4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question
Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The angle between $s{p^2}$orbitals in ethylene is......$^o$
A
${90}$
✓
${120}$
C
${180}$
D
${109.5}$
✓
Answer
Correct option: B.
${120}$
b The three equivalent $sp ^2$ orbitals will arrange themselves in a trigonal planar configuration. That is to say, the carbon nucleus will be at the center of an equilateral triangle, and the three $sp ^2$ orbitals will point to the corners of that triangle. The ideal angle between $sp ^2$ orbitals is therefore $120^{\circ}$.
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