MPSC PYQ
Science & Technology

Carbohydrate classification

Carbohydrate classification is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2023, 2025). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.

Real questions
2
Years tested
2 · 2023–2025
In context
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Asked in

20252023

What you need to know first

Basic chemistry of sugarsTypes of carbohydratesIsomerism basicsAldehyde and ketone groups

Real questions that test this

योग्य जोड्या लावा : अ. मोनोसॅकराइड ब. डायसॅकराइड क. ट्रायसॅकराइड ड. पॉलीसॅकराइड Match the correct pairs : A. Monosaccharide B. Disaccharide C. Trisaccharide D. Polysaccharide

(a)i. रॅफिनोज ii. स्टार्च iii. ग्लुकोज iv. सुक्रोज

1)अ - iii ब - ii क - i ड - iv
2)अ - ii ब - i क - iii ड - iv
3)अ - iv ब - iii क - ii ड - i
4)अ - iii ब - iv क - i ड - ii✓ Correct

Monosaccharide matches with Glucose (iii), Disaccharide matches with Sucrose (iv), Trisaccharide matches with Raffinose (i), and Polysaccharide matches with Starch (ii).

खालीलपैकी कोणता पर्याय संयुगे 'A' आणि 'B' च्या बाबतीत अचूक आहे ? A = CH2OH-C(=O)-(HO-C-H)_3-CH2OH, B = H-C(=O)-(HO-C-H)_4-CH2OH / Which of the following option is correct about compounds A and B ? A = CH2OH-C(=O)-(HO-C-H)_3-CH2OH, B = H-C(=O)-(HO-C-H)_4-CH2OH

1)A आणि B ही फक्त एकमेकांची प्रतिबिंबिरूपिते आहेत / A and B are only optical isomers of each other
2)A आणि B ही फक्त एकमेकांची क्रियात्मक गट समसूत्री आहेत / A and B are only functional isomers of each other✓ Correct
3)A आणि B ही एकमेकांची प्रतिबिंबिरूपिते आणि क्रियात्मक गट समसूत्री आहेत / A and B are optical as well as functional isomers of each other
4)A आणि B ही ऐकमेकांची प्रतिबिंबिरूपिते नाही आणि क्रियात्मक गट समसूत्री नाहीत / A and B are neither optical nor functional isomers of each other

Compound A is a ketohexose (contains a ketone group) and Compound B is an aldohexose (contains an aldehyde group). Since they have the same molecular formula but different functional groups, they are functional isomers.

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