Chemical Properties of Carboxylic Acids and its Derivatives

Acetyl bromide reacts with excess of  ${\mathrm{CH}}_3\mathrm{MgI}$ followed by treatment with a saturated solution of  ${\mathrm{NH}}_4\mathrm{Cl}$ gives –

Among the following acids which has the lowest  ${\mathrm{pK}}_{\mathrm{a}}$ value?

A liquid was mixed with ethanol and a drop of concentrated H₂SO₄ was added. A compound with a fruity smell was formed. The liquid was:

A liquid was mixed with ethanol and a drop of concentrated H₂SO₄ was added. A compound with a fruity smell was formed. The liquid was:

Which amongst the following compounds has the highest acid strength?

Effervescence takes place when sodium carbonate solution is added to

The product formed when two equivalents of ${\mathrm{CH}}_3\mathrm{MgBr}$ reacts with acetyl chloride followed by hydrolysis is

The following transformation

can be carried out in three steps. The reagents required for these three steps in their correct order, are:

Which is the strongest acid? 

In the equation ${\mathrm{CH}}_3\mathrm{COOH} + {\mathrm{Cl}}_2 \underset{- \mathrm{HCl}}{\overset{\mathrm{Red} \mathrm{Phosphorus}}{\to }} \mathrm{A},$ the compound $\mathrm{A}$ is :

The product obtained when acetic acid is treated with ${\mathrm{PCl}}_3$ is:

Fischer esterification is:

${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH}+{\mathrm{CCl}}_4+4\mathrm{KOH}\to \left[\mathrm{A}\right]\underset{{\mathrm{H}}^{+}}{\overset{\mathrm{Acetic} \mathrm{anhydride}}{\to }}\left[\mathrm{B}\right]$

What are $\left[\mathrm{A}\right]$ and $\left[\mathrm{B}\right]$ in the above reaction?

The correct increasing order of acidities is:
$\underset{1}{{\mathrm{ClCH}}_2\mathrm{COOH}}, \underset{2}{{\mathrm{Cl}}_2\mathrm{CHCOOH}}, \underset{3}{{\mathrm{Cl}}_3\mathrm{CCOOH}}$

The order of acidic strength of following acids is

The correct order of decreasing acid strength of the following acids is:
1) Trichloro acetic acid.
2) Trifluoro acetic acid.
3) Acetic acid.
4) Formic acid.

For the following conversion which reagent can be used :