[化學] 台大普化94.95.98 B.C卷
95C
17.Choose the element whose ion has the largest concentration inside a human
cell.
(a)Li (b)Na (c)K (d)Rb (e)Cs
A:c
98B
20.Which of the following atoms would be most reactive with water at room
temperature?
(a)K (b)Ba (c)Mg (d)Ca (e)Li
A:a
以上兩題在版上對完答案後，發現答案都是K，我兩題都寫錯@@不曉得各是什麼原因...
還有關於一個溶解度的問題
94C
7.Which one of the following compounds is most soluble in water?
(a)PbCl2 (b)Pb(ClO4)2 (c)Pb(OH)2 (d)PbSO4 (e)PbS
A:b
98C
18.Rank the following compounds according to increasing solubility in water.
I. CH3-CH2-CH2-CH3
II. CH3-CH2-O-CH2-CH3
III. CH3-CH2-OH
IV. CH3-OH
(a) I < III < IV < II
(b) I < II < IV < III
(c) III < IV < II < I
(d) I < II < III < IV
(e) None is correct
A: d
溶解度的問題有時候寫對有時候寫錯
98的排序還可以用比較去做刪去法 所以勉強寫對
但94的就不曉得原因 是因為原子數比較多嗎?
麻煩版友幫忙解惑一下!! 感恩!!
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※ 編輯: isconnie 來自: 119.77.222.54 (07/04 16:51)
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