有關極性分子問題

圖片參考：http://i1096.photobucket.com/albums/g340/pingshek/2012-03-19-1.png


http://i1096.photobucket.com/albums/g340/pingshek/2012-03-19-1.png

2012-03-22 02:10:04 補充：
To Brian:

請釐清以下概念：

1. CH2Cl2 is very polar, but not slight polar。
CH2Cl2 極性很高，並非帶輕微極性。

2. Dipole moments of bonds can cancel each other, but bonds cannot be "neutralized".
鍵的偶極矩可互相抵消，但鍵不可互相「中和」。

2012-03-22 02:10:13 補充：
3. "Cl & H are different" cannot lead to the conclusion "so showing a slightly polar force". Besides, there is no such concept called "polar force".
「Cl 與 H 不同」並不能導致「展示輕微極力」的結論。此外，亦沒有「極力」這個概念。

It is slightly polar . CH4 & CCl4 are non-polar but in methylene chloride , 2 hydrogen & 2 chlrine atoms forming bond with the central Carbon . They neutralize each other but Cl & H are different so showing a slightly polar force .