Which one of the following species does not exist under normal conditions?

(+)Sucrose

(+)Lactose

(+) Maltose

(-) Fructose

Solution

(+)Sucrose

Reducing sugars that exist in hemiacetal and hemiketal forms, undergo mutarotation in aqueous solution.
Among the given carbohydrates, only sucrose is a non-reducing sugar as in it the hemiacetal and hemiketal groups of glucose and fructose are linked together through O-atom and thus, not free. Due to the absence of free hemiacetal or hemiketal group, sucrose does not exhibit mutarotation.

Some More Questions From Biomolecules Chapter

The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Where does the water present in the egg go after the boiling the egg?

Why cannot vitamin C be stored in our body?

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Biomolecules

Which one of the following species does not exist under normal conditions?

(+)Sucrose

(+)Lactose

(+) Maltose

(-) Fructose

Some More Questions From Biomolecules Chapter

The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Where does the water present in the egg go after the boiling the egg?

Why cannot vitamin C be stored in our body?

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

What is a biomoiecule?

Define carbohydrates.

Give one example each of (i) Reducing sugar and (ii) Non-reducing sugar.

Name the anomers of glucose.

State two characteristics of monosaccharides.

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For Daily Free Study Material Join wiredfaculty

Biomolecules

Which one of the following species does not exist under normal conditions? (+)Sucrose (+)Lactose (+) Maltose (-) Fructose

Some More Questions From Biomolecules Chapter

The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Where does the water present in the egg go after the boiling the egg?

Why cannot vitamin C be stored in our body?

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

What is a biomoiecule?

Define carbohydrates.

Give one example each of (i) Reducing sugar and (ii) Non-reducing sugar.

Name the anomers of glucose.

State two characteristics of monosaccharides.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which one of the following species does not exist under normal conditions?

(+)Sucrose

(+)Lactose

(+) Maltose

(-) Fructose