Class 12th Chemistry Biomolecules Free Test Quiz for 2026 exam

Free Class 12 Chemistry Biomolecules MCQ Test Quiz for 2026 exam. Test questions on carbohydrates, proteins, vitamins, nucleic acids, and enzyme functions for effective revision.

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12th Chemistry: Biomolecules

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1. Which of the following statements is incorrect regarding glucose?

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2. Which among the following is the simplest sugar?

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3. Glucose can’t be classified as

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4. Which one of the following compounds is found abudnantly in nature?

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5. The function of glucose is to

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6. Glucose reacts with acetic anhydride to form

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7. Which of the following properties of glucose cannot be explained by its open chain structure?
(i) Glucose does not form hydrogen sulphite with NaHSO3
(ii) On oxidation with HNO3 glucose gives saccharic acid.
(iii) Glucose is found to exist in two different crystalline forms which are named as α and β.

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8. Which of the following carbohydrate does not correspond to the general formula Cx(H2O)y ?

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9. The two forms of D-glucopyranose obtained from the solution of D-glucose are called

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10. Reduction of glucose by HI suggest that

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Chapter wise chemistry mock test quiz

? Carbohydrates
Understand the classification of carbohydrates into aldoses and ketoses. Dive into the details of monosaccharides like glucose and fructose, oligosaccharides such as sucrose, lactose, and maltose, and explore polysaccharides like starch, cellulose, and glycogen. Learn their structures and biological importance in living organisms.

? Proteins
Get an overview of α-amino acids and their role in protein formation. Study peptide bonds and polypeptides, and gain a qualitative understanding of the structural levels of proteins: primary, secondary, tertiary, and quaternary. Learn about protein denaturation and the crucial role enzymes play in biochemical reactions.

? Vitamins
Explore the classification of vitamins (water-soluble and fat-soluble) and their essential functions in the human body. Understand their role in maintaining health and supporting vital physiological processes.

? Nucleic Acids
Discover the molecular basis of life through DNA and RNA. Learn their structures, functions, and how they carry genetic information and direct protein synthesis in cells.

FAQ

Q1. What is syllabus for class 12th chemistry chapter 14 mock test quiz?

Carbohydrates: Classification (aldoses and ketoses), monosaccharides (glucose and fructose), oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); importance.
Proteins: Elementary idea of α – amino acids, peptide bond, polypeptides, proteins, primary structure, secondary structure, tertiary structure and quaternary structure (qualitative idea only), denaturation of proteins; enzymes.
Vitamins: Classification and functions.
Nucleic Acids: DNA and RNA.

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Yes! This is absolutely free to participate in 12th class chemistry chapter 14. You can try as many times as you want and improve your score.

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