Alcohols, Phenols and Ethers

4.7 g of phenol is heated with Zn to give product X . If this reaction goes to $60 \%$ completion then the number of moles of compound X formed will be
$\_\_\_\_$ $\times 10^{-2}$.(Nearest Integer)
(Given molar mass in $\mathrm{g} \mathrm{m...

Consider the following sequence of reactions

The major product P is :

Consider the following reactions. Total number of electrons in the $\pi$ bonds and lone pair of electrons in the product $(X)$ is :

\(\text { Consider the following reaction. }\)

Statement I : In the above reaction, product formed will be a mixture of benzyl alcohol and iodobenzene.
Statement II : In the above reaction, the $-\mathrm{O}-\mathrm{CH}_2-$ bond is cleave...

One mole of phenol is treated with dilute $\mathrm{HNO}_3$ at 298 K to give a mixture of products. The mixture is separated by steam distillation. The steam volatile compound $(\mathrm{X})$ is separated. The increase in percentage of oxygen...

Consider compounds $\mathrm{A}, \mathrm{B}$ and C with following structural formulae
$$ \begin{aligned} & \mathrm{A}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OH} \\ & \mathrm{~B}=\mathrm{CH}_2=\mathrm{CH...

\(\text { Identify the colour of compound ' } \mathrm{X} \text { ' in the sequence of the reaction. }\)

\(\text { Consider the following reaction sequence }\)
Compound $(\mathrm{y})$ develops characteristic colour with neutral $\mathrm{FeCl}_3$ solution.
Identify the INCORRECT statement from the following for the above sequence.

The reactions which produce alcohol as the product are :
A. $\mathrm{CH}_4 + \mathrm{O}_2 \xrightarrow{\mathrm{Mo}_2\mathrm{O}_3,\ \Delta} $
B. $2\mathrm{CH}_3\mathrm{CH}_3 + 3\mathrm{O}_2 \xrightarrow{(\mathrm{CH}_3\mathrm{COO})_2\mathrm{M...

A hydroxy compound $(\mathrm{X})$ with molar mass $122 \mathrm{~g} \mathrm{~mol}^{-1}$ is acetylated with acetic anhydride, using a large excess of the reagent ensuring complete acetylation of all hydroxyl groups. The product obtained has a...

\(\text { From the following, how many compounds contain at least one secondary alcohol?}\)

Choose the correct answer from the options given below :

A mixed ether $(\mathrm{P})$, when heated with excess of hot concentrated hydrogen iodide produces two different alkyl iodides which when treated with aq. NaOH give compounds $(\mathrm{Q})$ and $(\mathrm{R})$. Both $(\mathrm{Q})$ and $(\mat...

Given below are two statements :
Statement I : Phenol on treatment with $\mathrm{CHCl}_3$ /aq. KOH under refluxing condition, followed by acidification produces $p$-hydroxy benzaldehyde as the major product and $o$-hydroxy benzaldehyde as t...

\(\text { 3, 3-Dimethyl-2-butanol cannot be prepared by : }\)

\(\text { Choose the correct answer from the options given below : }\)

Given below are two statements :
Statement I : Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.
Statement II : Sodium metal can be used to dry diethyl ether and not ethyl alco...

Benzene is treated with oleum to produce compound $(\mathrm{X})$ which when further heated with molten sodium hydroxide followed by acidification produces compound $(\mathrm{Y})$. The compound Y is treated with zinc metal to produce compoun...

0.1 mole of compound ‘S’ will weigh ___________ g.(Given molar mass in g mol−1 C : 12, H : 1, O : 16)

Which one of the following, with HBr will give a phenol?

Given below are two statements :
Statement I :
Statement II : In , intramolecular substitution takes place first by involving lone pair of electrons on nitrogen.
In the light of the above statements, choose the most appropriate answer from...

What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in $\mathrm{g} \mathrm{mol}^{-1}$ of $\mathrm{C}, \mathrm{H}, \mathrm{O}, \mathrm{Br}$ are $12,1,16,80$ respectively )

Given below are two statements :
Statement (I) : The boiling points of alcohols and phenols increase with increase in the number of C -atoms.
Statement (II) : The boiling points of alcohols and phenols are higher in comparison to other clas...

Identify the major products A and B respectively in the following set of reactions.

Match List I with List II

Choose the correct answer from the options given below :

Which one the following compounds will readily react with dilute \(\mathrm{NaOH}\) ?

In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is __________.

The major products formed :

A and B respectively are :

Consider the given chemical reaction sequence :

Total sum of oxygen atoms in Product A and Product B are ________.

For the Compounds :
(A) \(\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3\)
(B) \(\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3\)
(C)
(D)
The increasing order of...

Given below are two statement :
Statements I : Bromination of phenol in solvent with low polarity such as \(\mathrm{CHCl}_3\) or \(\mathrm{CS}_2\) requires Lewis acid catalyst.
Statements II : The Lewis acid catalyst polarises the bromine t...

Which one of the following reactions is NOT possible?

Consider the above reaction sequence and identify the major product P.

Common name of Benzene - 1,2 - diol is -

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: \(\mathrm{pK}_{\mathrm{a}}\) value of phenol is 10.0 while that of ethanol is 15.9 .
Reason R: Ethanol is stronger acid than ...

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Alcohols react both as nucleophiles and electrophiles.
Reason R: Alcohols react with active metals such as sodium, potassium ...

The major product(P) in the following reaction is

Match List I with List II

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
...

Phenol treated with chloroform in presence of sodium hydroxide, which further hydrolyzed in presence of an acid results

The ascending order of acidity of \(-\mathrm{OH}\) group in the following compounds is :

Choose the correct answer from the options given below:

Given below are two statements :
Statement (I) : p-nitrophenol is more acidic than m-nitrophenol and o-nitrophenol.
Statement (II) : Ethanol will give immediate turbidity with Lucas reagent.
In the light of the above statements, choose the ...

Match List - I with List - II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norm...

Phenolic group can be identified by a positive:

Major product formed in the following reaction is a mixture of :

Match List - I with List - II.


table {
border-collapse: collapse;
width: 100%;
}
th, td {
border: 1px solid black;
padding: 8px;
text-align: left;
}
th {
background-color: #0000FF;
color: white;
}

...

The water gas on reacting with cobalt as a catalyst forms

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Butan -1- ol has higher boiling point than ethoxyethane.
Reason R: Extensive hydrogen bonding leads to stronger association o...

Among the following, the number of compounds which will give positive iodoform reaction is _________
(a) 1-Phenylbutan-2-one
(b) 2-Methylbutan-2-ol
(c) 3-Methylbutan-2-ol
(d) 1-Phenylethanol
(e) 3,3-dimethylbutan-2-one
(f) 1-Phenylpropan-2-...

The strongest acid from the following 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 solution in low polarity solvent results in high yield of B. B 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 $\mathrm{A}$ with $\mathrm{Br}_{2}-\mathrm{H}_{2} \mathrm{O}$ gives an acid, $\mathrm{C}_{5} \math...

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