作者taigoinwo (还是一只幼鼠)
看板Chemistry
标题[题目] 氧化还原与键结
时间Thu Mar 6 18:46:30 2008
氧化还原
C6H12O2中碳的氧化数？
键结
Which compound does not contain both polar covalent and ionic bonds?
(a) NaOH
(b) KC2H3O2
(c) CH3OH
(d) NH4NO3
(e) All of the above contain both polar covalent and ionic bonds.
In a polar bond, electrons:
(a) spend equal time around both nuclei
(b) are localized between both nuclei
(c) spend more time around the bigger nucleus
(d) spend more time around one of the nuclei than the other one
(e) spend more time around the smaller nucleus
If water and carbon dioxide molecules did interact, what major intermolecular
force will exist between these molecules?
(a) Covalent bond
(b) London dispersion
(c) Ion-dipole force
(d) Dipole-dipole force
(e) Hydrogen bonding
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1F：推 ji3g4vul3ck6:2.c 3.d 4.e 1.结构化出来就知道了 03/06 21:24
2F：推 affine:请问第一题碳的氧化数是4嘛 还是0 氧是-2 氢是+1还是-1 03/07 00:24