Arrange the following in the correct order of | vedclass

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

Question

(B) The rate of Nucleophilic Addition Reaction $(NAR)$ depends on two main factors:$1$. Magnitude of positive charge on the carbonyl carbon: Higher po

Vedclass · Accepted Answer

$I > III > II > IV$

Vedclass · Answer

(B) The rate of Nucleophilic Addition Reaction $(NAR)$ depends on two main factors:$1$. Magnitude of positive charge on the carbonyl carbon: Higher positive charge increases the rate.$2$. Steric hindrance: Higher steric hindrance decreases the rate.Comparing the given compounds:$(I) \ HCHO$: No alkyl group,least steric hindrance,highest electrophilicity.$(II) \ CH_3CHO$: One electron-donating methyl group,moderate steric hindrance.$(III) \ p-NO_2-C_6H_4CHO$: The $-NO_2$ group is strongly electron-withdrawing ($-I$ and $-M$ effect),which increases the positive charge on the carbonyl carbon,making it more reactive than $(IV)$ and $(II)$.$(IV) \ p-CH_3-C_6H_4CHO$: The $-CH_3$ group is electron-donating ($+I$ and hyperconjugation),which decreases the positive charge on the carbonyl carbon,making it the least reactive.Thus,the order of reactivity is: $(I) > (III) > (II) > (IV)$.

Arrange the following in the correct order of the rate of Nucleophilic Addition Reaction $(NAR)$:
$(I) \ HCHO$
$(II) \ CH_3CHO$
$(III) \ p-NO_2-C_6H_4CHO$
$(IV) \ p-CH_3-C_6H_4CHO$

Similar Questions

For the conversion of cyclohexanone to $1-$hydroxy$-1-$methylcyclohexan$-2-$one,the correct order of reagents used is:
$(1)$ $CH_3MgBr / H^+$
$(2)$ $H^+ / \Delta$
$(3)$ $KMnO_4$ (cold dil.)
$(4)$ $CrO_3$

Which of the following compounds does not give the iodoform test?

$C_2H_5CHO$ and $(CH_3)_2CO$ can be distinguished by testing with

$CaOCl_2 + H_2O \longrightarrow Ca(OH)_2 + X$
$X + CH_3CHO \longrightarrow Y$
$Y + Ca(OH)_2 \longrightarrow CHCl_3$
What is '$Y$'?

Predict the product of the following reaction:
$2,2',6,6'$-tetraformylbiphenyl $\xrightarrow[(ii)\,H^{+}/H_2O, 0^{\circ}C]{(i)\,NaOH (excess)}$ ?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Arrange the following in the correct order of the rate of Nucleophilic Addition Reaction $(NAR)$:$(I) \ HCHO$$(II) \ CH_3CHO$$(III) \ p-NO_2-C_6H_4CHO$$(IV) \ p-CH_3-C_6H_4CHO$