Organic Chemistry PYQ — Page 31

 ‘A’ and ‘B’ in the above reactions are:

The correct order of ${\mathrm{pK}}_{a}$ values for the following compounds is: 

Isomeric amines with molecular formula ${C}_{8}{H}_{11}N$ give the following tests Isomer$(P)\Rightarrow$ Can be prepared by Gabriel phthalimide synthesis Isomer$(Q)\Rightarrow$ Reacts with Hinsberg’s reagent to give solid insoluble in $\mathrm{NaOH}$ Isomer$(R)\Rightarrow$ Reacts with $\mathrm{HONO}$ followed by $\beta$-naphthol in $\mathrm{NaOH}$ to give red dye. Isomers$(P),(Q)$ and $(R)$ respectively are

Choose the halogen which is most reactive towards SN1 reaction in the given compounds (A, B, C & D) A.  B.  C.  D. 

' A ' in the given reaction is 

Which of the following conformations will be the most stable?

 $'A'$ is

Following chromatogram was developed by adsorption of compound '$A$' on a $6\mathrm{cm}$ TLC glass plate. Retardation factor of the compound '$A$' is _____ $\times {10}^{-1}$. 

The major product for the following reaction is : 

 Product $[X]$ formed in the above reaction is:

Major product $'P'$ formed in the following reaction is  Major product

Assertion A: Hydrolysis of an alkyl chloride is a slow reaction but in the presence of $\mathrm{NaI}$, the rate of hydrolysis increases. Reason R: ${I}^{-}$$^{ }$is a good nucleophile as well as a good leaving group. In the light of the above statements, choose the correct answer from the options given below.

An organic compound ' $A$ ' with empirical formula ${C}_{6}{H}_{6}O$ gives sooty flame on burning. Its reaction with bromine solution in low polarity solvent results in high yield of $B.B$ is

The correct representation in six membered pyranose form for the following sugar [$X$] is 

The major product '$P$' formed in the given reaction is 

$2-\mathrm{hexene}\rightarrow _{(\mathrm{ii}){H}_{2}O}^{(i){O}_{3}}\mathrm{Products}$ The two products formed in above reaction are

In the following reaction, ‘$B$’ is 


Find out the major products from the following reactions. 

Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5- tetramethylhexane by chlorination is _________

The correct order of melting point of dichlorobenzenes is

The major product '$P$' for the following sequence of reactions is: 

$0.400g$ of an organic compound $(X)$ gave $0.376g$ of $\mathrm{AgBr}$ in Carius method for estimation of bromine. $%$ of bromine in the compound $(X)$ is (Given: Molar mass $\mathrm{AgBr}=188g{\mathrm{mol}}^{-1}$ $\mathrm{Br}=80g{\mathrm{mol}}^{-1})$

The major product ‘$P$’ formed in the given reaction is