by hydrolysis of which substance, we obtain one molecules of glucose ?
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Chemistry MCQs for NEET — Practice Questions with Answers
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which sugar reduces fehling’s solution and makes phenyl hydrazone with phenyl hygrazine ?
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Explanation
Both maltose and lactose are reducing sugars. They can reduce Fehling’s solution and also form phenyl hydrazone with phenyl hydrazine.
which sugar doesn’t reduce fehling’s Solution ?
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Explanation
Sucrose is a non-reducing sugar because it does not have a free aldehyde or ketone group, which is necessary for reducing Fehling's solution.
which sugar is hydrolyzed by emulsine enzyme ?
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Explanation
The enzyme emulsine, also known as beta-glucosidase, hydrolyzes lactose into glucose and galactose.
which sugar is dextrorotatory and indicates mutarotation ?
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Explanation
Maltose is a dextrorotatory sugar and exhibits mutarotation, which is the change in the optical rotation due to the change in the equilibrium between two anomers, alpha and beta forms.
which sugar is dextrorotatory and doesn’t indicate mutarotation ?
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Explanation
Sucrose is a dextrorotatory sugar but does not exhibit mutarotation because it is a non-reducing sugar and does not have a free aldehyde or keto group to participate in the mutarotation process.
what is the specific rotation of aqueous solution of mixture , which is produced after hydrolysis of sucrose ?
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example of polysaccharide is
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Explanation
Polysaccharides are long-chain carbohydrates made up of many monosaccharide units. Both starch and cellulose are examples of polysaccharides, whereas sucrose is a disaccharide.
general formula for polysaccharide is
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Explanation
The general formula for polysaccharides, also known as complex carbohydrates, is $(C_6H_{10}O_5)_n$. This formula represents a polysaccharide composed of repeating units of monosaccharides like glucose. Polysaccharides include starch, glycogen, and cellulose. In this formula, 'n' represents the number of repeating glucose units.
_____ is the main component of cell walls of plants.
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Explanation
Cellulose is the main component of the cell walls of plants. It is a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Cellulose provides structural support to plant cells, making it a crucial component of the plant cell wall.
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