Exemplar Solution

This is a Assertion and Reason Type Questions as classified in NCERT Exemplar

Ans: (c)

In the acryl derivative, the delocalisation of electrons of the nitrogen atom occur over the carbonyl group, this decreases the electron density on the nitrogen atom that it no more perform as nucleophile and don't react with next acylating alkaline molecule. 

Therefore, Assertion statement is correct but reason is incorrect.

This is a Short Answer Type Questions as classified in NCERT Exemplar

Glucose reacts with hydroxylamine to form a monoxime, which is then combined with one molecule of hydrogen cyanide to form cyanohydrin. The reactions are shown in the table below.

It has a carbonyl group as a consequence, which can be an aldehyde or a ketone. Gluconic acid, a carboxylic acid containing six carbon atoms, is formed when glucose is gently oxidised with bromine water.

This is a Matching Type Questions as classified in NCERT Exemplar

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

This is a Short Answer Type Questions as classified in NCERT Exemplar

Biocatalysts are enzymes that act as catalysts in biological reactions. They reduce the size of activation energy by finding a suitable path. Because the enzyme sucrase reduces the activation energy of sucrose hydrolysis from to, enzyme-catalyzed reactions occur at a much faster rate than traditionally catalysed ones. 

This is a Short Answer Type Questions as classified in NCERT Exemplar

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.

This is a Matching Type Questions as classified in NCERT Exemplar

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

This is a Short Answer Type Questions as classified in NCERT Exemplar

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.

This is a Short Type Questions as classified in NCERT Exemplar

Ans:

This is a Short Answer Type Questions as classified in NCERT Exemplar

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.