Alcohols, Phenols and Ethers

In the given reaction,

the number of sp$^2$ hybridised carbon(s) in compound 'X' is ______.

$$\mathrm{A+CH_3CH_2OH\longrightarrow C_6H_6\xrightarrow[(ii)\ NaOH\ (iii)\ HCl]{(i)\ H_2SO_4\ (oleum),\ \Delta}B}$$

Consider the above reaction sequence. Identify the component A and component B :

Given below are two statements :

Statement I : On heating with $\mathrm{KHSO_4}$, glycerol is dehydrated and acrolein is formed.

Statement II : Acrolein has fruity odour and can be used to test glycerol's presence.

Choose the correct option.

Arrange the following in decreasing acidic strength.

A sample of 4.5 mg of an unknown monohydric alcohol, R-OH was added to methylmagnesium iodide. A gas is evolved and is collected and its volume measured to be 3.1 mL. The molecular weight of the unknown alcohol is ______ g/mol. [Nearest integer]

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 (PhMgBr) followed by acidic hydrolysis ?

$$\mathrm{Ph{-}C(Ph)(CH_3){-}OH}$$

Hydrolysis of which compound will give carbolic acid?

The number of non-ionisable protons present in the product B obtained from the following reactions is ______.

$\mathrm{C_2H_5OH+PCl_3\rightarrow C_2H_5Cl+A}$

$\mathrm{A+PCl_3\rightarrow B}$

In the above reaction product B is:

Product B is

In the following reaction

The % yield for reaction I is 60% and that of reaction II is 50%. The overall yield of the complete reaction is ______%. [nearest integer]

Major product 'B' of the following reaction sequence is :

$$\mathrm{CH_3-\underset{\displaystyle CH_3}{\underset{|}{C}}=CH-CH_3\xrightarrow[\ CH_3OH\ ]{Br_2}A\xrightarrow{HI}\underset{\text{(major product)}}{B}}$$

Choose the correct option for the following reactions.

Identify the major products A and B for the below given reaction sequence.

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.

4-Hydroxybenzaldehyde is treated with Br$_2$ to give A; A with NH$_2$OH gives B; B is heated with P$_2$O$_5$ to give C.

Consider the above reaction sequence, the Product 'C' is :

A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHCO$_3$ solution. Compound 'X' also gives violet colour with neutral FeCl$_3$ solution. The compound 'X' is :

When enthanol is heated with conc. H$_2$SO$_4$, a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is

A 1.84 mg sample of polyhydric alcoholic compound 'X' of molar mass 92.0 g/mol gave 1.344 mL of H$_2$ gas at STP. The number of alcoholic hydrogens present in compound 'X' is _______.