Which of the following reactions is best for | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The oxidation of primary alcohols to aldehydes is best achieved using mild oxidizing agents that do not further oxidize the aldehyde to a carboxyl

Vedclass · Accepted Answer

$CH_3-CH_2-CH_2-OH \xrightarrow{P.C.C.}{}$

Vedclass · Answer

(C) The oxidation of primary alcohols to aldehydes is best achieved using mild oxidizing agents that do not further oxidize the aldehyde to a carboxylic acid. $P.C.C.$ (Pyridinium chlorochromate) is a selective oxidizing agent that stops the oxidation at the aldehyde stage. $CrO_3$ in acidic medium or $KMnO_4$ are strong oxidizing agents that typically oxidize primary alcohols directly to carboxylic acids. $[Ag(NH_3)_2]^+$ (Tollens' reagent) is used to oxidize aldehydes to carboxylic acids,not alcohols to aldehydes.

Item-$I$	Item-$II$
$I$. Benzene	$P$. $HCl$ and $SnCl_2, H_3O^{+}$
$II$. Benzonitrile	$Q$. $H_2, Pd-BaSO_4, S$ and quinoline
$III$. Benzoyl Chloride	$R$. $CO, HCl$ and $AlCl_3$

Which of the following reactions is best for the preparation of an aldehyde from a primary alcohol?

Similar Questions

The correct match between Item-$I$ (starting material) and Item-$II$ (reagent) for the preparation of benzaldehyde is :
Item-$I$ Item-$II$
$I$. Benzene $P$. $HCl$ and $SnCl_2, H_3O^{+}$
$II$. Benzonitrile $Q$. $H_2, Pd-BaSO_4, S$ and quinoline
$III$. Benzoyl Chloride $R$. $CO, HCl$ and $AlCl_3$

In the following sequence of reactions,what is the end product $(D)$?
$C_2H_5Br$ $\xrightarrow{KCN} A$ $\xrightarrow{H_3O^{+}} B$ $\xrightarrow{LiAlH_4} C$ $\xrightarrow[573 \ K]{Cu} D$.

Which of the following is used as a reagent in the Etard reaction?

Among the following reagents,which one can convert an ester into an aldehyde?

$R-CN \xrightarrow[(ii) H_2O]{(i) DIBAL-H} R-Y$
Consider the above reaction and identify $Y$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module