Aldehydes and Ketones

The correct sequence of reagents for the following conversion will be :

The major product obtained in the following reaction is :

A compound of molecular formula $\ce{C8H8O2}$ reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with conc. NaOH forms benzyl alcohol as one of the products. The structure of the compound is :

In the following reaction sequence :
$$\underset{(\ce{C3H6Cl2})}{\text{I}}\ce{->[KOH(aq)]}\text{II}\xrightarrow[\text{(ii) }\ce{H2O/H+}]{\text{(i) }\ce{CH3MgBr}}\text{III}\xrightarrow{\text{Anhy. }\ce{ZnCl2}\text{ + Con. HCl}}\text{gives turbidity immediately}$$
The compound I is :

Positive Tollen's test is observed for

The correct statement(s) about the following reaction sequence is(are)

$$\text{Cumene }(\ce{C9H12})\xrightarrow[\text{ii) }\ce{H3O+}]{\text{i) }\ce{O2}}\mathbf P\xrightarrow{\ce{CHCl3/NaOH}}\mathbf Q\text{ (major)}+\mathbf R\text{ (minor)}$$
$$\mathbf Q\xrightarrow[\ce{PhCH2Br}]{\ce{NaOH}}\mathbf S$$

The major product of the following reaction sequence is

Isobutyrophenone $\xrightarrow[\text{ii) HCHO/}\ce{H+}\text{ (catalytic amount)}]{\text{i) HCHO (excess)/NaOH, heat}}$

Reagent(s) which can be used to bring about the following transformation is(are)

Consider the reaction sequence below :

X is :

The correct statement about the synthesis of erythritol ($\ce{C(CH2OH)4}$) used in the preparation of PETN is :

The major product of the following reaction is

Among the following, the number of reaction(s) that produce(s) benzaldehyde is

In the following reactions, the product S is

The major compound Y is

In the following sequence of reactions :
$$\text{Toluene}\ce{->[KMnO4] A ->[SOCl2] B ->[H2/Pd][BaSO4] C},$$
the product C is :

A compound A with molecular formula $\ce{C10H13Cl}$ gives a white precipitate on adding silver nitrate solution. A on reacting with alcoholic KOH gives compound B as the main product. B on ozonolysis gives C and D. C gives Cannizaro reaction but not aldol condensation. D gives aldol condensation but not Cannizaro reaction. A is :

In the reaction sequence
$$\ce{2CH3CHO ->[OH^-] A ->[\Delta] B}$$
; the product B is :

Consider all possible isomeric ketones, including stereoisomers, of MW = 100. All these isomers are independently reacted with $\ce{NaBH4}$ (NOTE: stereoisomers are also reacted separately). The total number of ketones that give a racemic product(s) is/are

The major product in the following reaction is

The correct statement with respect to product Y is