阿摩線上測驗
23. Which of the following statements is true?
(A) a triple bond is composed of two a bonds and one x bond.
(B)σ bonds result from the head-to-head overlap of atomic orbitals.
(C) Free rotation may occur about a double bond.
(D) x bonds have electron density on the internuclear axis.
(E) the Lewis structure for C2H2 shows single bonds and one double bond.
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統計： A(0), B(1), C(1), D(1), E(1) #2788671
統計： A(0), B(1), C(1), D(1), E(1) #2788671
