Question
Write the increasing order of bond length in C2H6, C2H4 and C2H2.
✓
Answer
$\begin{array}{lc} \underset { \text {1.20 Å}} {C _2 H _2}< \underset{ \text{1.34 Å}}{C _2 H _4}< \underset { \text {$1.54^ {\circ}$ }} {C _2 H _6} \end{array}$
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