
第42節十分鐘小測

Quiz
•
Science
•
1st Grade
•
Hard
QTSSCI QTSSCI
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 下列哪個組合(離子;顏色)不正確?
A Fe3+(aq);棕黃色
B Ni2+(aq);綠色
C Sc3+(aq);粉紅色
D Ti3+(aq);紫色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 在下列的化學物種中,何者的釩的氧化態最高?
A VO2+
B V3+
C V2O3
D NH4VO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A Zn(s) 與水反應釋出H2 氣體。
B Ti2+(aq) 離子與V(s) 反應。
C Cu(s) 與Ni2+(aq) 離子反應。
D Sc(s) 與Cr2+(aq) 離子反應。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4 把過量的銅粉加入含有 VO2+(aq) 離子的溶液中,發生以下方程式表示的反應:
VO2+(aq) + 4H+(aq) + Cu(s) → V3+(aq) + 2H2O(l) + Cu2+(aq)
下列的陳述,何者正確?
(1) 所得溶液呈黃色。
(2) 反應中 Cu(s) 作為還原劑。
(3) 釩的氧化數由 +4 變為 +3。
A 只有 (1)
B 只有 (2)
C 只有 (1) 和 (3)
D 只有 (2) 和 (3)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 下列哪些是鈦的用途?
(1) 製造人造髖關節。
(2) 製造太空船。
(3) 從植物油生產人造牛油時作為催化劑。
A 只有 (1) 和 (2)
B 只有 (1) 和 (3)
C 只有 (2) 和 (3)
D (1)、(2) 和 (3)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6 很多過渡金屬及其化合物可用作工業過程中的催化劑。下列哪個組合(工業過程;所用的催化劑)不正確?
A 從氨的氧化生產硝酸;錳 (II) 離子
B 哈柏法;鐵
C 接觸法;氧化釩 (V)
D 把植物油氫化成人造牛油;鎳
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7 已知在酸的存在下,MnO4–(aq) 和C2O42–(aq) 之間的反應生成物是自催化劑。
下列哪幅坐標圖最能顯示反應混合物的顏色強度隨時間的變化?
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