Named reactions

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)

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$^{-1}$]

"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

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 :

'$x$' 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.

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 _____.

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

Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda lime gives 'C'. The compound 'C' is

The intermediate X, in the reaction :

Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?

Which of the following reactions will yield benzaldehyde as a product ?

(A) Benzoic acid: (i) $\mathrm{SOCl_2}$, Quinoline (ii) $\mathrm{H_2/Pd/BaSO_4}$

(B) Benzyl alcohol: $\mathrm{CrO_3/H_2SO_4}$

(C) Methyl benzoate: (i) $\mathrm{NaBH_4}$ (ii) PCC

(D) Toluene: (i) $\mathrm{CrO_3}$, $\mathrm{(CH_3CO)_2O}$ (ii) $\mathrm{H_3O^+}$, $\Delta$

The correct structure of product 'A' formed in the following reaction.

$$\mathrm{PhCHO+Ph\cdot CHO\xrightarrow[in\ D_2O]{NaOD}A+Ph{-}\overset{O}{\overset{\|}{C}}{-}O^-}\qquad(\mathrm{Ph\ is\ {-}C_6H_5})$$

is

$$\mathrm{C_6H_{12}O_6\xrightarrow{Zymase}A\xrightarrow[\Delta]{NaOI}B+CHI_3}$$

The number of carbon atoms present in the product B is ______.

Match List - I with List - II.

Choose the correct answer from the options given below :

'A' and 'B' in the following reactions are :

Aniline is treated with NaNO$_2$/HCl and then KCN to give (A); (A) with SnCl$_2$/HCl/H$_3$O$^+$ gives (B).

The compound Y is