Biomolecules

List-I contains various physical/chemical processes, and List-II contains combinations of changes in enthalpy $(\Delta H)$ and entropy $(\Delta S)$. Match each entry in List-I to the appropriate entry in List-II, and choose the correct option.

A known artificial sweetener X is composed of 4-chloro-4-deoxy-α-D-galactose and 1,6-dichloro-1,6-dideoxy-β-D-fructose joined by a glycosidic linkage. Structure of D-galactose is given below:

The correct structure of X is

The correct statement(s) regarding sugars is(are)

Given: Specific rotations of L-(−)-glucose and L-(+)-fructose are $-52.5^\circ$ and $+92.5^\circ$, respectively.

In the following reaction sequence, major products X and Y are acyclic monomers.

$\ce{CH3I}$ $\xrightarrow[\text{3. Red P, }\ce{Br2}\quad\text{4. }\ce{NH3}\text{ (excess)}]{\text{1. KCN}\quad\text{2. }\ce{H3O+},\ \Delta}$ X

Caprolactam $\xrightarrow[\Delta]{\ce{H3O+}}$ Y

500 mol of X completely reacts with 500 mol of Y to give 1 mol of a single biodegradable acyclic copolymer Z as the only product. The amount of Z formed in grams is ____.

Given: Atomic mass (in amu): H : 1, C : 12, N : 14, O : 16, Br : 80

Match List - I with List - II.

Choose the correct answer from the options given below :

Identify the correct pair having amino acid (A) and the hormone (B) that is iodinated derivative of the amino acid (A).
(T and Y represent one letter code for amino acids)

	Amino acid (A)	Hormone (B)
(A)	T	Insulin
(B)	T	Thyroxine
(C)	Y	Thyroxine
(D)	Y	Insulin

Given below are two statements:

Statement I: The structure of Maltose is given below: Maltose is a non-reducing sugar.

Statement II: The structure of Lactose is given below: Lactose is a reducing sugar.

In the light of the above statements, choose the correct answer from the options given below

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

A D-aldotetrose on oxidation with concentrated $\ce{HNO3}$ resulted in optically inactive dicarboxylic acid. The structure of the D-aldotetrose is:

Identify the correct statements.

A. Glucose exists in two anomeric forms.

B. Anomers of glucose differ in configuration at C−1 in cyclic hemiacetal structure.

C. Melting point of α-anomer of glucose is greater than β-anomer.

D. Specific rotation of α-anomer is +19° while for β-anomer is +112°

E. α and β-anomers of glucose are prepared by crystallization of saturated glucose solution at 303 K and 371 K respectively.

Choose the correct answer from the options given below:

Identify the incorrect statement about tertiary structure of proteins.

Given below are two statements :

Statement I: The two structures shown (Haworth projections) are two anomers of D-(+)-glucose.

Statement II: The open chain forms of D-glucose and D- fructose contain three similar chiral carbons at $C_3$, $C_4$ and $C_5$.

In the light of the above statements, choose the correct answer from the options given below :

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

Consider the following reactions. Total number of electrons in the $\pi$ bonds and lone pair of electrons in the product (X) is :

The incorrect statement from the following with respect to carbohydrates is :

Which of the following amino acid will give violet coloured complex with neutral ferric chloride solution ?

Match the compounds in List-I with the appropriate observations in List-II and choose the correct option.

The correct reaction/reaction sequence that would produce a dicarboxylic acid as the major product is

A linear octasaccharide (molar mass $= 1024\ \mathrm{g\,mol^{-1}}$) on complete hydrolysis produces three monosaccharides: ribose, 2-deoxyribose and glucose. The amount of 2-deoxyribose formed is 58.26 % (w/w) of the total amount of the monosaccharides produced in the hydrolyzed products. The number of ribose unit(s) present in one molecule of octasaccharide is _____.

Use: Molar mass (in $\mathrm{g\,mol^{-1}}$): ribose $= 150$, 2-deoxyribose $= 134$, glucose $= 180$; Atomic mass (in amu): H = 1, O = 16