问题
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氰化物在酸性溶液中蒸发出后被吸收于碱性溶液中,在pH7.0溶液中,用氯胺T将氰化物转变为(),再
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氰化物在酸性溶液中蒸发出后被吸收于碱性溶液中,在pH7.0 溶液中, 用氯胺T将氰化物转变为氯化氢,
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用乙醚提取法测定不皂化物的原理是油脂与氢氧化钾乙醇溶液在煮沸回流条件下进行皂化,用()从皂化
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GB/T5009.37-2003测定过氧化值所需要的碘化钾饱和溶液中,可以用淀粉溶液验证是否有游离碘和碘酸
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盐酸硫胺在碱性溶液中与下列哪个试剂作用后,在异丁醇中显蓝色荧光A.铁氰化钾B.亚铁氰化钾C.氰化
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维生素B1在碱性溶液中,与下面哪个试剂作用后,在正丁醇中产生蓝色荧光A.铁氰化钾B.氰化钾C.亚铁氰
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