第5节黄酮类化合物

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此试卷为《第5节黄酮类化合物》，该试卷共包含64道试题，试题类型如下:

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1、[单选题]属于异黄酮类的化合物是
- A.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365851549349.png" title="" alt=""/>
- B.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365869336276.png" title="" alt=""/>
- C.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365885744271.png" title="" alt=""/>
- D.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365900733353.png" title="" alt=""/>
- E.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365916387110.png" title="" alt=""/>
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2、[单选题]水解后容易变绿的化合物是
- A.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365851549349.png" title="" alt=""/>
- B.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365869336276.png" title="" alt=""/>
- C.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365885744271.png" title="" alt=""/>
- D.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365900733353.png" title="" alt=""/>
- E.<img src="https://cdn.360ckw.com/uploads/images/20241031/1730365916387110.png" title="" alt=""/>
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3、[单选题]花色素及其苷元的颜色随pH不同而改变，一般显红色时的pH为
- A.pH=7.5
- B.pH<7
- C.pH=8.5
- D.pH>8.5
- E.pH>7
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4、[单选题]花色素及其苷元的颜色随pH不同而改变，一般显紫色时的pH为
- A.pH=7.5
- B.pH<7
- C.pH=8.5
- D.pH>8.5
- E.pH>7
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5、[单选题]花色素及其苷元的颜色随pH不同而改变，一般显蓝色时的pH为
- A.pH=7.5
- B.pH<7
- C.pH=8.5
- D.pH>8.5
- E.pH>7
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