
考考你:第49章 過渡性金屬的一般性質
Authored by Chemistry Aristo
Chemistry
9th - 12th Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些過渡性金屬在它們的化合物中展示可變的氧化態?
(1) 錳
(2) 釩
(3) 鈧
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些過渡性金屬離子在水溶液中是無色的?
(1) Cr³⁺(aq)
(2) Zn²⁺(aq)
(3) V²⁺(aq)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關鐵的陳述正確?
(1) 鐵的常見氧化態是+2和+3。
(2) 鐵粉在哈柏法中用作催化劑。
(3) 鐵(II) 離子或鐵(III) 離子均可催化碘離子與過氧二硫酸根離子的反應。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下反應:
2MnO₄⁻(aq) + 5C₂O₄²⁻(aq) + 16H⁺(aq) → 2Mn²⁺(aq) + 10CO₂(g) + 8H₂O(l)
下列哪些有關這反應的陳述正確?
(1) MnO₄⁻(aq)離子被還原為Mn²⁺(aq)離子。
(2) 反應混合物的顏色由紫色變為非常淺的粉紅色。
(3) 在C₂O₄²⁻(aq)離子中碳的氧化態是+3。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些物質可在植物油氫化時用作催化劑?
(1) MnO₂(s)
(2) Pd(s)
(3) Pt(s)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些過渡性金屬在與連接至汽車排放系統的催化轉化器中用作催化劑?
(1) 鎳
(2) 銠
(3) 鉑
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關鈷的陳述正確?
(1) Co²⁺(aq)離子在水溶液中呈粉紅色。
(2) 鈷對維生素B₁₂的合成非常重要。
(3) 氧化鈷(II) 在接觸法中用作催化劑。
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