Among the following compounds, which one has the shortest C – Cl bond?
A
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B
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C
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D
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Solution
The correct option is D
Explanation for correct option:
D
Compounds with multiple bonds have short bond lengths.
As methene chloride also shows resonating structures, it has the shortest bond length.
The resonating structures of methene chloride are shown as follows:
Explanation for incorrect options:
A
Tri-methyl chloride has all single bonds hence the bond lengths of the compound are longer than compounds having multiple bonds.
B
Methyl chloride also has single bonds hence the bond length of the compound is longer than compounds having multiple bonds.
C
1-ethene methyl chloride has both single and double bonds but does not form resonating structures hence the bond lengths of the compound are longer than compounds showing resonance.
Hence option D is correct, as methene chloride has multiple bonds also showing resonating structures.