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Questions and Answers
What color product is formed in Seliwanoff's Test when ketohexoses react with resorcinol?
What color product is formed in Seliwanoff's Test when ketohexoses react with resorcinol?
- Yellow
- Cherry red (correct)
- Blue
- Green
What reagent is used in Bial's Test as a dehydrating acid?
What reagent is used in Bial's Test as a dehydrating acid?
- Orcinol
- Bial's reagent
- Concentrated HCl (correct)
- Ferric chloride
What is the purpose of Seliwanoff's Test?
What is the purpose of Seliwanoff's Test?
- To distinguish between pentose monosaccharide and hexose monosaccharide
- To test for the presence of furfural in solutions
- To differentiate between glucose and fructose
- To distinguish between aldoses and ketoses (correct)
Which compound reacts with orcinol and iron ion in Bial's Test to produce a bluish or green product?
Which compound reacts with orcinol and iron ion in Bial's Test to produce a bluish or green product?
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What does Barfoed's reagent consist of?
What does Barfoed's reagent consist of?
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In which test are aldohexoses known to give a yellow to faint pink color?
In which test are aldohexoses known to give a yellow to faint pink color?
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Which test uses 6M HCl as a dehydrating agent?
Which test uses 6M HCl as a dehydrating agent?
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What do hexoses yield in Bial's Test with the presence of iron ion?
What do hexoses yield in Bial's Test with the presence of iron ion?
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What is the purpose of the addition of more water if the color is not obvious during a test?
What is the purpose of the addition of more water if the color is not obvious during a test?
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What is the role of ferric chloride in Bial’s Test?
What is the role of ferric chloride in Bial’s Test?
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