JEE Main
Chemistry
Alcohols, Phenols and Ethers
Previous Years Questions

The graph which represents the following reaction is : ...
Compound $\mathrm{A}, \mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}_{5}$, given a tetraacetate with $\mathrm{Ac}_{2} \mathrm{O}$ and oxidation of $\mathrm... Consider the following reaction The correct statement for product B is. It is... An organic compound 'A' with emperical formula $$\mathrm{C}_{6} \mathrm{H}_{6} \mathrm{O}$$ gives sooty flame on burning. Its reaction with bromine so... A solution of $$\mathrm{C_r O_5}$$ in amyl alcohol has a __________ colour. Find out the major product for the following reaction. ... Find out the major product from the following reaction. ... In the cumene to phenol preparation in presence of air, the intermediate is 'A' and 'B' formed in the following set of reactions are : ... When enthanol is heated with conc. $$\mathrm{H}_{2} \mathrm{SO}_{4}$$, a gas is produced. The compound formed, when this gas is treated with cold dilu... The Hinsberg reagent is Considering the above reactions, the compound 'A' and compound 'B' respectively are :... A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHCO3 solution. Compound 'X' also gives violet colour with neutral FeCl... The major product in the given reaction is ... Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B. ... Identify the major products A and B for the below given reaction sequence. ... In the above reaction product B is :... The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to : Which reactant will give the following alcohol on reaction with one mole of phenyl magnesium bromide $$(\mathrm{PhMgBr})$$ followed by acidic hydrolys... What is the major product of the following reaction? ... Consider the above reaction sequence. Identify the component A and component B :... The reagent neutral ferric chloride is used to detect the presence of ______________ Given below are two statements : Statement I : Phenols are weakly acidic. Statement II : Therefore they are freely soluble in NaOH solution and are we... The major product (P) of the given reaction is (where, Me is $$-$$CH3) ... In the given reaction 'A' can be... The major product formed in the following reaction, is ... The intermediate X, in the reaction : ... 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'. T... The structures A and B formed in the following reaction are : [Ph = $$-$$C6H5]... The major product of the following reaction is :... The major product formed in the following reaction is :... Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Treatment of bromine water ... Given below are two statements :Statement I : Ethyl pent-4-yn-oate on reaction with CH3MgBr gives a 3$$^\circ$$-alcohol.Statement II : In this reactio... The major product of the following reaction, if it occurs by SN2 mechanism is :... The major product of the following reaction is :... Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Synthesis of ethyl phenyl e... Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc. H2SO4 ? The correct options for the products A and B of the following reactions are :... Consider the above reaction, the major product "P" formed is :... Consider the above reaction and identify the Product P :... Consider the above reaction, the major product 'P' is :... The given reaction can occur in the presence of :(a) Bromine water(b) Br2 in CS2, 273 K(c) Br2/FeBr3(d) Br2 in CHCl3, 273 KChoose the correct answer f... Which of the following compounds will provide a tertiary alcohol or reaction with excess of CH3MgBr followed by hydrolysis? An organic compound A (C6H6O) gives dark green colouration with ferric chloride. On treatment with CHCl3 and KOH, followed by acidification gives comp... Reaction of Grignard reagent, C2H5MgBr with C8H8O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound... Ceric ammonium nitrate and CHCl3/alc. KOH are used for the identification of functional groups present in __________ and _______ respectively.... Identify A in the given reaction.... Identify the major products A and B respectively in the following reactions of phenol :... Given below are two statements : Statement I : o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding.Statement II : o-Nitrophenol has... B reacts with Hydroxyl amine but does not give Tollen's test. Identify A and B.... What is 'X' in the given reaction?... The major product of the following reaction is : ... Which of the following derivatives of alcohols is unstable in an aqueous base? The major product [B] in the following reactions is : ... The major product [R] in the following sequence of reactions as : ... When neopentyl alcohol is heated with an acid, it slowly converted into an 85 : 15 mixture of alkenes A and B, respectively. What are these alkenes? Consider the following reaction : The product 'P' gives positive ceric ammonium nitrate test. This is because of the presence of which of these –OH g... The major product of the following reaction is : ... Among the compounds A and B with molecular formula C9H18O3 , A is having higher boiling point the B. The possible structures of A and B are :... Arrange the following compounds in increasing order of C–OH bond length : methanol, phenol, p-ethoxyphenol The major product of the following reaction is : ... Consider the following reaction : $${\left( {C{H_3}} \right)_3}CCH\left( {OH} \right)C{H_3}\buildrel {conc.\,\,\,{H_2}S{O_4}} \over \longrightarrow ... What is the product of following reaction ? ... What will be the major product when m-cresol is reacted with propargyl bromide (HC$$ \equiv $$C–CH2Br) in presence of K2CO3 in acetone? ... Heating of 2-chloro-1-phenylbutane with EtOK/EtOH gives X as the major product. Reaction of X with Hg(OAc)2/H2O followed by NaBH4 gives Y as the major... The major product of the following reaction is : ... The major product of the following reaction is : ... The major product of the following reaction is: ... Aniline dissolved in dilute HCl is reacted with sodium nitrite at 0ºC. This solution was added dropwise to a solution containing equimolar mixture of ... The major product of the following reaction is: ... The major product of the following reaction is : ... Coupling of benzene diazonium chloride with 1 - naphthol in alkaline medium will give : The major product in the following conversion is – ... The major product of the following reaction is : ... The major product of the following reaction is : ... Which is the most suitable reagent for the following transformation ? ... The major product of the following reaction ... The major product 'X' formed in the following reaction is : ... Phenol on treatment with CO2 in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with (CH3CO)2O... Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. A reacts with Br2 to form product B. A and B are respectively :... The major product formed in the following reaction is : ... The major product of the following reaction is : ... The major product of the following reaction is : ... Consider the reaction sequence below : X is:... The gas evolved on heating CH3MgBr in methanol is : Bouveault-Blanc reduction reaction involves :$$2$$-chloro-$$2$$-methylpentane on reaction with sodium methoxide in methanol yields: ... The product of the reaction given below is : ... Sodium phenoxide when heated with$$C{O_2}$$under pressure at$${125^ \circ }C$$yields a product which on acetylation products$$C.$$The major pr... An unknown alcohol is treated with the “Lucas reagent” to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastes... Arrange the following compounds in order of decreasing acidity : ... Phenol is heated with a solution of mixture of KBr and KBrO3. The major product obtained in the above reaction is From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2, is The main product of the following reaction is$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{C_6}{H_5}C{H_2}CH\left( {OH} \right)CH{\left( {C{H_... The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is : Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives In the following sequence of reactions, CH3CH2OH $$\buildrel {P + {I_2}} \over \longrightarrow$$ A $$\mathrel{\mathop{\kern0pt\longrightarrow} \lim... HBr reacts with CH2 = CH – OCH3 under anhydrous conditions at room temperature to give The structure of the compound that gives a tribromo derivative on treatment with bromine water is The electrophile involved in the above reaction is ... Among the following the one that gives positives iodoform test upon reaction with$${I_2}$$and$$NaOH$$is The best reagent to convert pent -3- en-2-ol into pent -3-en-2-one is$$p$$-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form, the compound$$B.$\$ The latter on a...
Among the following compounds which can be dehydrated very easily is
During dehydration of alcohols to alkenes by heating with conc. H2SO4 the initiation step is

## Numerical

The denticity of the ligand present in the Fehling's reagent is ___________.
Number of compounds giving (i) red colouration with ceric ammonium nitrate and also (ii) positive iodoform test from the following is ___________ ...
The number of chlorine atoms in bithionol is __________.
The number of chiral alcohol(s) with molecular formula C4H10O is ________.
In the given reaction, the number of sp2 hybridised carbon(s) in compound 'X' is ________....
To synthesize 1.0 mole of 2-methylpropan-2-ol from Ethylethanoate ___________ equivalents of CH3MgBr Reagent will be required. (Integer value)...
On complete reaction of FeCl3 with oxalic acid in aqueous solution containing KOH, resulted in the formation of product A. The secondary valency of Fe...
A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product. The mass percentage of carbon in P is ______. (...

## MCQ (More than One Correct Answer)

Which of the following compounds reacts with ethylmagnesium bromide and also decolourizes bromine water solution:
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