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 Multiple Choice QuestionsShort Answer Type

1. Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain.
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2.

What are the expected products of hydrolysed of lactose?

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3.

How do you explain the absence of aldehyde group in the penta acetate of D-glucose?

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4.

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

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5.

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


Denaturation of proteins is a process in which physical and biological properties of protein without changing the chemical composition of protein. In an egg denaturation of protein is the coagulation of albumin present in the white of an egg. When egg is boiled in water, the globular proteins present in it changes to a rubber like insoluble mass which absorbs all water present in the egg.

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6. Why cannot vitamin C be stored in our body?
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7.

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

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8.

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?

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9. What is a biomoiecule?
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10. Define carbohydrates.
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