Biomolecules · Chemistry · JEE Advanced

For a double strand DNA, one strand is given below: The amount of energy required to split the double strand DNA into two single strands is _______ k...

The structure of a peptide is given below. If the absolute values of the net charge of the peptide at $\mathrm{pH}$ $=2$, $\mathrm{pH}=6$, and $\mathr...

The total number of distinct naturally occurring amino acids obtained by complete acidic hydrolysis of the peptide shown below is ...

The total number of lone-pairs of electrons in melamine is

A tetrapeptide has $$-$$COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolys...

The substituents R1 and R2 for nine peptides are listed in the table given below. How many of these peptides are positively charged at pH = 7.0 ? .t...

A decapeptide (mol. wt. 796) on complete hydrolysis gives glycine (mol. wt. 75), alanine and phenylalanine. Glycine contributes 47.0% to the total wei...

The total number of basic groups in the following form of lysine is ...

A disaccharide $\mathbf{X}$ cannot be oxidised by bromine water. The acid hydrolysis of $\mathbf{X}$ leads to a laevorotatory solution. The disacchari...

Treatment of D-glucose with aqueous $\mathrm{NaOH}$ results in a mixture of monosaccharides, which are

The following carbohydrate is ...

The correct statement about the following disaccharide is : ...

Cellulose upon acetylation with excess acetic anhydride/H$$_2$$SO$$_4$$ (catalytic) gives cellulose triacetate whose structure is :

Given : The compound(s), which on reaction with HNO3 will give the product having degree of rotation, [$$\alpha$$]D = $$-$$52.7$$^\circ$$ is (are)...

Which of the following statement(s) is(are) true?

The Fischer presentation of $$D$$-glucose is given below. The correct structure(s) of $$\beta $$-$$L$$-glucopyranose is (are) :...

For "invert sugar", the correct statement(s) is(are) (Given : specific rotations of (+)-sucrose, (+)-maltose, L-($$-$$)-glucose and L-(+)-fructose in ...

The structure of D-(+)-glucose is The structure of L-($$-$$)-glucose is...

The correct statement(s) about the following sugar X and Y is(are) ...