MCQ
Primary, secondary and tertiary alcohols can be distinguish by:
  • A
    Baeyer's reagent
  • B
    Fehling's solution
  • C
    Sulphuric acid
  • Lucas reagent

Answer

Correct option: D.
Lucas reagent
Primary alcohols react on heating with Lucas elegant.
Secondary alcohols react with Lucas reagent after $5$ min tertiary alcohol react immediately with Lucas reagent.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

How many isomers are possible for the complex ion $[Cr(NH_3)(OH)_2Cl_3]^{2-}$
Which of the following represents the decreasing order of basic strength of amines in the gas phase?
Identify $B$ formed in the reaction.

$\begin{array}{l} Cl -\left( CH _2\right)_4- Cl \xrightarrow{\text { excess } NH _3} A \xrightarrow{ NaOH } \\ B + H _2 O + NaCl\end{array}$

From the compounds given below, number of compounds which give positive Fehling's test is..................

Benzaldehyde, Acetaldehyde, Acetone,  Acetophenone,Methanal, $4-$nitrobenzaldehyde, cyclohexane carbaldehyde.

When ethyl alcohol $({C_2}{H_5}OH)$ reacts with thionyl chloride, in the presence of pyridine, the product obtained is
The equation that is incorrect is

Which of the following statements are correct about this reaction?
$a.$ The given reaction follows $\mathrm{S}_{\mathrm{N}}{_2}$ mechanism.
$b. (b)$ and $(d)$ have opposite configuration.
$c. (b)$ and $(d)$ have opposite configuration.
$d.$ The given reaction follows $\mathrm{S}_{\mathrm{N}}{_1}$ mechanism.
 
Geometrical as well as optical isomerism is shown by
The correct order of reactivity of $PhMgBr$ with

$(I)$  $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {Ph\, - C - Ph} 
\end{array}$

$(II)$  $\begin{array}{*{20}{c}}
  {\,\,\,\,O} \\ 
  {\,\,\,\,||} \\ 
  {C{H_3} - C - H} 
\end{array}$

$(III)$  $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$

 is

The compound which does not react with sodium metal is :