Those sugars which contain \(2,3,5\),6 carbon atoms and which cannot be hydrolysed further into simpler units are known as monosaccharides.Hence, hexoses and pentoses are monosaccharides.
CHXII14:BIOMOLECULES
324498
Match the sugars in column I with their types given in column II and mark the appropriate choice. Column I Column II A Glucose P Ketohexose B Fructose Q Aldohexose C Ribose R Aldotetrose D Erythrose S Aldopentose
1 \({\text{A - S, B - P, C - R, D - Q }}\)
2 \({\text{A - R, B - S, C - P, D - Q }}\)
3 \({\text{A - P, B - Q, C - R, D - S }}\)
4 \({\text{A - Q, B - P, C - S, D - R }}\)
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324499
Assertion : Glucose and fructose are reducing sugars. Reason : Glucose and fructose contain a free aldehydic and ketonic group adjacent to > CHOH group respectively.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Reducing sugars possess a free aldehydic or ketonic group adjacent to a hydroxyl (\(\mathrm{-CHOH})\) group. They can reduce reagents like Tollen's reagent, Schiff's reagent, or Benedict's solution. So, option (1) is correct.
CHXII14:BIOMOLECULES
324500
Assertion : Sucrose is a disaccharide. Reason : Sucrose is dextro rotatory.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbohydrates that, upon hydrolysis, yield two molecules of the same or different monosaccharides are categorized as disaccharides. Sucrose is a disaccharide. Upon hydrolysis it gives equimolar mixture of D -(+)-glucose and D-(-) fructose. Sucrose is dextrorotatory. So, option (2) is correct.
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CHXII14:BIOMOLECULES
324497
Hexoses and pentoses are
1 disaccharides
2 monosaccharides
3 polysaccharides
4 oligosaccharides
Explanation:
Those sugars which contain \(2,3,5\),6 carbon atoms and which cannot be hydrolysed further into simpler units are known as monosaccharides.Hence, hexoses and pentoses are monosaccharides.
CHXII14:BIOMOLECULES
324498
Match the sugars in column I with their types given in column II and mark the appropriate choice. Column I Column II A Glucose P Ketohexose B Fructose Q Aldohexose C Ribose R Aldotetrose D Erythrose S Aldopentose
1 \({\text{A - S, B - P, C - R, D - Q }}\)
2 \({\text{A - R, B - S, C - P, D - Q }}\)
3 \({\text{A - P, B - Q, C - R, D - S }}\)
4 \({\text{A - Q, B - P, C - S, D - R }}\)
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324499
Assertion : Glucose and fructose are reducing sugars. Reason : Glucose and fructose contain a free aldehydic and ketonic group adjacent to > CHOH group respectively.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Reducing sugars possess a free aldehydic or ketonic group adjacent to a hydroxyl (\(\mathrm{-CHOH})\) group. They can reduce reagents like Tollen's reagent, Schiff's reagent, or Benedict's solution. So, option (1) is correct.
CHXII14:BIOMOLECULES
324500
Assertion : Sucrose is a disaccharide. Reason : Sucrose is dextro rotatory.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbohydrates that, upon hydrolysis, yield two molecules of the same or different monosaccharides are categorized as disaccharides. Sucrose is a disaccharide. Upon hydrolysis it gives equimolar mixture of D -(+)-glucose and D-(-) fructose. Sucrose is dextrorotatory. So, option (2) is correct.
Those sugars which contain \(2,3,5\),6 carbon atoms and which cannot be hydrolysed further into simpler units are known as monosaccharides.Hence, hexoses and pentoses are monosaccharides.
CHXII14:BIOMOLECULES
324498
Match the sugars in column I with their types given in column II and mark the appropriate choice. Column I Column II A Glucose P Ketohexose B Fructose Q Aldohexose C Ribose R Aldotetrose D Erythrose S Aldopentose
1 \({\text{A - S, B - P, C - R, D - Q }}\)
2 \({\text{A - R, B - S, C - P, D - Q }}\)
3 \({\text{A - P, B - Q, C - R, D - S }}\)
4 \({\text{A - Q, B - P, C - S, D - R }}\)
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324499
Assertion : Glucose and fructose are reducing sugars. Reason : Glucose and fructose contain a free aldehydic and ketonic group adjacent to > CHOH group respectively.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Reducing sugars possess a free aldehydic or ketonic group adjacent to a hydroxyl (\(\mathrm{-CHOH})\) group. They can reduce reagents like Tollen's reagent, Schiff's reagent, or Benedict's solution. So, option (1) is correct.
CHXII14:BIOMOLECULES
324500
Assertion : Sucrose is a disaccharide. Reason : Sucrose is dextro rotatory.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbohydrates that, upon hydrolysis, yield two molecules of the same or different monosaccharides are categorized as disaccharides. Sucrose is a disaccharide. Upon hydrolysis it gives equimolar mixture of D -(+)-glucose and D-(-) fructose. Sucrose is dextrorotatory. So, option (2) is correct.
Those sugars which contain \(2,3,5\),6 carbon atoms and which cannot be hydrolysed further into simpler units are known as monosaccharides.Hence, hexoses and pentoses are monosaccharides.
CHXII14:BIOMOLECULES
324498
Match the sugars in column I with their types given in column II and mark the appropriate choice. Column I Column II A Glucose P Ketohexose B Fructose Q Aldohexose C Ribose R Aldotetrose D Erythrose S Aldopentose
1 \({\text{A - S, B - P, C - R, D - Q }}\)
2 \({\text{A - R, B - S, C - P, D - Q }}\)
3 \({\text{A - P, B - Q, C - R, D - S }}\)
4 \({\text{A - Q, B - P, C - S, D - R }}\)
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324499
Assertion : Glucose and fructose are reducing sugars. Reason : Glucose and fructose contain a free aldehydic and ketonic group adjacent to > CHOH group respectively.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Reducing sugars possess a free aldehydic or ketonic group adjacent to a hydroxyl (\(\mathrm{-CHOH})\) group. They can reduce reagents like Tollen's reagent, Schiff's reagent, or Benedict's solution. So, option (1) is correct.
CHXII14:BIOMOLECULES
324500
Assertion : Sucrose is a disaccharide. Reason : Sucrose is dextro rotatory.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbohydrates that, upon hydrolysis, yield two molecules of the same or different monosaccharides are categorized as disaccharides. Sucrose is a disaccharide. Upon hydrolysis it gives equimolar mixture of D -(+)-glucose and D-(-) fructose. Sucrose is dextrorotatory. So, option (2) is correct.