Compound (x) with molecular formula C_4H_8O g | vedclass

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

Question

(A) The $2,4-DNP$ test is given by aldehydes and ketones (carbonyl compounds). Since the compound does not give a $2,4-DNP$ test,it cannot be an aldeh

Vedclass · Accepted Answer

But$-3-$en$-2-$ol

Vedclass · Answer

(A) The $2,4-DNP$ test is given by aldehydes and ketones (carbonyl compounds). Since the compound does not give a $2,4-DNP$ test,it cannot be an aldehyde or a ketone.The haloform test is given by compounds containing the $CH_3CO-$ group or the $CH_3CH(OH)-$ group.Among the given options:$A$. But$-3-$en$-2-$ol $(CH_2=CH-CH(OH)-CH_3)$ contains the $CH_3CH(OH)-$ group,so it gives a positive haloform test. It is an alcohol,not a carbonyl compound,so it does not give the $2,4-DNP$ test.$B$. Butanal is an aldehyde,so it gives the $2,4-DNP$ test.$C$. Butan$-2-$one is a ketone,so it gives the $2,4-DNP$ test.$D$. Cyclobutanol does not contain the required structural group for the haloform test.Therefore,the correct compound is But$-3-$en$-2-$ol.

Compound $(x)$ with molecular formula $C_4H_8O$ gives a positive haloform test but does not give a $2,4-DNP$ test. The compound is:

Similar Questions

Product $(B)$ of the above reaction is

Consider the following reaction sequence:
$\text{Cyclohexanol}$ $\xrightarrow{CrO_3} A$ $\xrightarrow{CH_3MgBr / H^+, H_2O} B$ $\xrightarrow{H_2SO_4, \Delta} C$ $\xrightarrow{B_2H_6, H_2O_2, OH^-} D$
Identify the final product $D$.

Explain the mechanism of dehydration of alcohols with a suitable example.

Alcohols react with Grignard reagent to form

Which of the following is the most suitable reagent for the conversion of $RCH_2OH$ to $RCHO$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module