Optical isomerism and chirality

Considering $\ce{LiBH4}$ reduces an ester group to the corresponding alcohol and does not reduce a carboxylic acid group, the correct statement about the major products P, Q, R and S is

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 following structures are

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

For the reaction sequence given below, the correct statement(s) is(are)

Aspartame, an artificial sweetener, is a dipeptide aspartyl phenylalanine methyl ester. The structure of aspartame is

(Structures of phenylalanine and aspartic acid are given below.)

In the following reactions, P, Q, R, and S are the major products.

The correct statement(s) about P, Q, R, and S is(are)

Match the reactions in List-I with the features of their products in List-II and choose the correct option.

The total number of chiral molecules formed from one molecule of $\mathbf{P}$ on complete ozonolysis $(\ce{O3}, \ce{Zn/H2O})$ is ________.

Treatment of D-glucose with aqueous NaOH results in a mixture of monosaccharides, which are

L-isomer of a compound 'A' ($\mathrm{C_4H_8O_4}$) gives a positive test with $\mathrm{[Ag(NH_3)_2]^+}$. Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound 'A' produces an optically active compound (B) and an optically inactive compound (C) on treatment with bromine water and $\mathrm{HNO_3}$ respectively. Compound (A) is :

Total number of possible stereoisomers of dimethyl cyclopentane is ______.

Observe structures of the following compounds

The total number of structures/compounds which possess asymmetric carbon atoms is ______.

Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2% ; H, 4.9 % and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with $\mathrm{KMnO_4}$. Isomer 'A' is optically active and gives a pale yellow precipitate when warmed with alcoholic $\mathrm{AgNO_3}$. Isomer 'A' and 'B' are, respectively

The number of chiral alcohol(s) with molecular formula $\mathrm{C_4H_{10}O}$ is ______.

Most stable product of the following reaction is :

In the given reaction

(Where Et is $-\mathrm{C_2H_5}$)

The number of chiral carbon/s in product A is ______.

Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is ______.

Optical activity of an enantiomeric mixture is +12.6° and the specific rotation of (+) isomer is +30°. The optical purity is ______%.

Compound 'A' undergoes following sequence of reactions to give compound 'B'. The correct structure and chirality of compound 'B' is

[where Et is −C$_2$H$_5$]

Compound 'A' (2-bromo-3-methylbutane) is treated with (i) Mg, Et$_2$O (ii) D$_2$O to give B.