Chemistry

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Physical or chemical changes damage hydrogen bonding and other attractive factors. In addition, globules uncoil and the helix uncoils, resulting in a thread-like molecule. As a result, the biological activity of protein secondary and tertiary structures is lost entirely or partially. Protein denaturation is the term for this.

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Ans: (i)- (d), (ii)- (c), (iii)- (a), (iv)- (b)

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Since both acidic (−COOH) and basic (−NH₂) groups present in amino acids, it act like salts rather than simple amines or carboxylic acids. In Ans, a −COOH a group can release a proton and an amine group can take a proton, resulting in the formation of a dipolar ion known as zwitterion.

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Sucrose acts as a dextrorotatory molecule. It produces a mixture of glucose and fructose when hydrolyzed, with particular rotations of +52.5? and −92.4? The net resultant mixture is laevorotatory because fructose laevorotation is greater than glucose dextrorotation. The sign of rotation shifts from dextro to laevo as a result of sucrose hydrolysis, and the resulting compound is known as invert sugar.

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Excess vitamin C is easily removed in the urine since it is water soluble. As a result, it can't be stored in the body and must be ingested frequently.

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The given structure A is glucose pentaacetate, which lacks a free hydroxyl? OH or carbon -CHO group. As a result, it cannot be transferred to the open chain form to make a free group, and therefore the oxime is not produced.

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