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In CH2=C=CH2it is given that the length between H of first carbon at top and H of last carbon at top is L1 and length between H of first carbon at top and H of last carbon at bottom is L2.what is the relation between L1 and L2? Ans) L1=L2Due to steric hindrance....the hydrogens of carbon 1 and hydrogens of carbon 2 are not in same plane!! but the length will be same!
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