4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question
Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The two carbon atoms in acetylene are
A
$s{p^3}$ hybridized
B
$s{p^2}$ hybridized
✓
$sp$ hybridized
D
Unhybridized
✓
Answer
Correct option: C.
$sp$ hybridized
c The carbon - carbon triple bond is only $1.20 \mathring A$ long. In the hybrid orbital picture of acetylene, both carbons are sp-hybridized. In an $sp$-hybridized carbon, the $2s$ orbital combines with the $2 px$ orbital to form two $sp$ hybrid orbitals that are oriented at an angle of $180^{\circ}$ with respect to each other.
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