Aldehydes and Ketones

In the following reaction sequence, Q, R, S and T are the major products.

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

The List-II contains products obtained from the reaction of compounds in List-I with $\ce{O3}$/Zn-$\ce{H2O}$ followed by cyclization (via more stable enolate) in the presence of aqueous NaOH. Match each entry in List-I with appropriate entry in List-II and choose the correct option.

Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option.

Natural rubber on complete ozonolysis ($\ce{O3}$/Zn-$\ce{H2O}$) gives compound X as the major product. X gives positive iodoform and Tollen's tests. X on heating with aqueous NaOH gives Y as the major product. Y is

An organic compound "$x$" where molar ratio of C, O and H are equal, on treatment with 50% KOH under reflux followed by acidification produced "$y$". The most likely structure of "$y$" is :
[Molar mass of '$x$' is 58 g mol$^{-1}$]

A molecule (X) with following structure under mild acidic condition is hydrolysed to produce (Y) and (Z). Identify the correct statements about (Y) and (Z).

A. Both (Y) and (Z) have same molar mass.

B. (Y) and (Z) can be distinguished from each other by $\ce{NaHCO3}$.

C. (Y) and (Z) react with HCN with same rates.

D. (Y) and (Z) undergo addition reaction with 2,4-DNP.

Choose the correct answer from the options given below :

Identify compounds A and E in the following reaction sequence.

"P" is a hydrocarbon of molecular formula:- $\ce{C8H14}$. On ozonolysis, "P" forms "Q". "Q" on treatment with alkali under reflux condition produces "R", which on treatment with $\ce{I2}$/NaOH gives a yellow precipitate. Acidification of the solution gives "S". The structure of "S" is given below:-

The correct structure of "P" is

Given below are two statements :

Statement I: The condensation reaction between $\ce{CH3-CH=O}$ and $\ce{H2N-NH-C(=O)-NH2}$ under optimum pH will produce $\ce{CH3-CH=N-C(=O)-NH-NH2}$

Statement II: The molecule, $\ce{Ph-CH(OH)(OCH3)}$ will generate $\ce{Ph-CH=O}$ in the presence of dilute acid.

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

Given below are two statements:

Statement I: 2,6-diethylcyclohexanone and 6-methyl-2-n-propylcyclohexanone are metamers.

Statement II: 2,2,6,6 - tetramethylcyclohexanone exhibits keto-enol tautomerism.

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

'$x$' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic medium at 333 K. '$y$' is the product which is obtained by the reaction of ethane nitrile with methyl magnesium bromide in dry ether followed by hydrolysis. IUPAC name of product obtained from '$x$' and '$y$' in the presence of barium hydroxide followed by heating is :

An optically active alkyl bromide $\ce{C4H9Br}$, reacts with ethanolic KOH to form major compound [A] which reacts with bromine to give compound [B]. Compound [B] reacts with ethanolic KOH and sodamide to give compound [C]. One molecule of water adds to compound [C] on warming with mercuric sulphate and dilute sulphuric acid at 333 K to form compound [D]. The functional group in compound D will be confirmed by :

Consider the following reaction.

The major product (P) formed is :

'$x$' is the product which is obtained from benzene by reacting it with carbon monoxide and hydrogen chloride in the presence of cuprous chloride. '$y$' is the major product obtained from the benzene by reacting it with ethanoyl chloride in the presence of anhydrous $\ce{AlCl3}$. Product (major) obtained by heating $x$ and $y$ in the presence of alkali is $z$. Total number of $\pi$ (pi) electrons in $z$ is ________.

The reaction sequence given below is carried out with 16 moles of X. The yield of the major product in each step is given below the product in parentheses. The amount (in grams) of S produced is _____.

Use: Atomic mass (in amu): H = 1, C = 12, O = 16, Br = 80

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in List-I. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.

Monocyclic compounds P, Q, R and S are the major products formed in the reaction sequences given below.

The product having the highest number of unsaturated carbon atom(s) is

Reaction of iso-propylbenzene with $\ce{O2}$ followed by the treatment with $\ce{H3O+}$ forms phenol and a by-product P. Reaction of P with 3 equivalents of $\ce{Cl2}$ gives compound Q. Treatment of Q with $\ce{Ca(OH)2}$ produces compound R and calcium salt S.

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

Complete reaction of acetaldehyde with excess formaldehyde, upon heating with conc. NaOH solution, gives P and Q. Compound P does not give Tollens' test, whereas Q on acidification gives positive Tollens' test. Treatment of P with excess cyclohexanone in the presence of catalytic amount of p-toluenesulfonic acid (PTSA) gives product R.

Sum of the number of methylene groups ($\ce{-CH2-}$) and oxygen atoms in R is _____.

List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.