ऐल्कोहॉल, फीनॉल एवं ईथर

The reagent(s) used in hydroboration-oxidation of propene are:

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What happens when $\text{C}_6\text{H}_5-\text{O}-\text{R}$ is treated with $\text{HX}$?

Arrange the following compounds in increasing order of their acidic strength:

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Read the following passage and answer questions 46 to 50: Replacement of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group yields a class of compounds known as ethers. Ethers are classified as symmetrical or unsymmetrical on the basis of groups attached to the oxygen atoms. Diethyl ether, a symmetrical ether, has been widely used as an inhalation anesthetic. Ethers can be prepared by acid catalyzed intermolecular dehydration of alcohols and Williamson's synthesis. Acid catalyzed dehydration of alcohols is not generally preferred as it gives a mixture of elimination and substitution products. In Williamson's synthesis, an alkyl halide is allowed to react with sodium alkoxide. Ethers containing substituted alkyl groups may also be prepared by this method. The C-O bond in ether is weakly polar and is cleaved under drastic conditions with excess of hydrogen halides. In electrophilic substitution, the alkoxy group activates the aromatic ring and directs the incoming group to ortho and para positions.

When ethanol is dehydrated in the presence of $\text{H}_2\text{SO}_4$ at $443\text{ K}$ and $413\text{ K}$ respectively, the products formed are:

(Based on Ethers Passage) The major product in the reaction of anisole with bromine in ethanoic acid is:

(Based on Ethers Passage) In Williamson synthesis, the alkoxide ion attacks the alkyl halide via which pathway?

(Based on Ethers Passage) Which is the most reactive hydrogen halide for the cleavage of ethers?

(Based on Ethers Passage) Which type of ether is anisole?

The correct order of increasing boiling points of the following compounds is: Pentan-1-ol, n-Butane, Pentanal, Ethoxyethane

In the reaction, $(\text{CH}_3)_3\text{C}-\text{O}-\text{CH}_3 + \text{HI} \rightarrow \text{Products}$, $\text{CH}_3\text{OH}$ and $(\text{CH}_3)_3\text{C}-\text{I}$ are the products and not $\text{CH}_3\text{I}$ and $(\text{CH}_3)_3\text{C}-\text{OH}$. It is because:

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In the following table, match the reactants given in List-I with the correct product in List-II as per the reaction of hydration of alkene under acidic condition:

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Aspirin is an acetylation product of:

Name the reaction in which phenol reacts with chloroform in the presence of aqueous sodium hydroxide followed by acid hydrolysis to produce salicylaldehyde: $$\text{C}_6\text{H}_5\text{OH} \xrightarrow{\text{CHCl}_3 + \text{aq. NaOH}} \xrightarrow{\text{H}^+} o-\text{HO-C}_6\text{H}_4-\text{CHO}$$

The IUPAC name of $\text{C}_6\text{H}_5-\text{C}(\text{CH}_3)_2-\text{OH}$ is:

Few compounds are given below (A to D). Arrange them in the increasing order of their boiling points:

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In the reaction of propene ($\text{CH}_3-\text{CH}=\text{CH}_2$):

The structure of the major monohalo product in the reaction of 4-(hydroxymethyl)phenol with concentrated $\text{HCl}$ under heat is:

Among the following statements, choose the correct statements:

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Arrange the following compounds in the increasing order of their acidic strength:

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The products of the reaction of ethoxybenzene (phenetole) with hydrobromic acid ($\text{HBr}$) are: $$\text{C}_6\text{H}_5-\text{O}-\text{C}_2\text{H}_5 + \text{HBr} \rightarrow$$