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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?
What does Barfoed's reagent consist of?
What does Barfoed's reagent consist of?
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?
Which test uses 6M HCl as a dehydrating agent?
Which test uses 6M HCl as a dehydrating agent?
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?
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?
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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