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Questions and Answers
Which test is used to distinguish ketoses from aldoses in the qualitative analysis of carbohydrates?
Which test is used to distinguish ketoses from aldoses in the qualitative analysis of carbohydrates?
- Benedict's Test
- Molisch's Test
- Seliwanoff's Test (correct)
- Fehling's Test
What is the color of the complex formed in Seliwanoff's Test when a ketose is present?
What is the color of the complex formed in Seliwanoff's Test when a ketose is present?
- Deep cherry red (correct)
- No color change
- Brick-red
- Faint pink
Which reagent is used in Benedict's Test to detect the presence of reducing sugars?
Which reagent is used in Benedict's Test to detect the presence of reducing sugars?
- Copper(II) sulfate pentahydrate (correct)
- Resorcinol
- Sodium citrate
- Concentrated hydrochloric acid
What happens to the copper (II) ions in Benedict's Test when exposed to reducing sugars?
What happens to the copper (II) ions in Benedict's Test when exposed to reducing sugars?
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Which type of sugar is dehydrated more rapidly in Seliwanoff's Test?
Which type of sugar is dehydrated more rapidly in Seliwanoff's Test?
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