7.下列化合物有无偶极矩?如有,用箭头指向负极的方向。-|||-CH3-|||-(1) C=C-|||-Cl-|||-H3C Cl-|||-(2) C=C-|||-Cl CH3-|||-(3)CH3CH2Cl-|||-(4)CH3CH2 NH2-|||-(5) (H)_(3)C=N-|||-(6)CH3OCH3-|||-(7)CH3OH-|||-(8) https:/img.zuoyebang.cc/zyb_64ff51ec0d1ce37ebfba22293852539d.jpg-C1-|||-(9)CCl4

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Cl H3C Cl-|||-(3) (4) H3C 直-|||-CI CH3 H Cl-|||-H H-|||-(5)-|||-H3C C2H5-|||-(4) H3C 直-|||-H CH3-|||

Cl H3C Cl-|||-(3) (4) H3C 直-|||-CI CH3 H Cl-|||-H H-|||-(5)-|||-H3C C2H5-|||-(4)

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    • Br-|||-(1)-|||-Br H-|||-CH3-|||-CH2CH3-|||-H Cl-|||-(2)-|||-H H-|||-CH3-|||--C(H)_(2)-|||-Br-|||-(3)

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