Arrange the following compounds in decreasing | vedclass

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

Question

(A) The reactivity of carbonyl compounds towards nucleophilic addition reactions is governed by steric and electronic factors. $1.$ Steric effect: As

Vedclass · Accepted Answer

$I > II > III > IV$

Vedclass · Answer

(A) The reactivity of carbonyl compounds towards nucleophilic addition reactions is governed by steric and electronic factors. $1.$ Steric effect: As the number and size of alkyl groups attached to the carbonyl carbon increase,the attack of the nucleophile becomes more difficult due to steric hindrance. $2.$ Electronic effect: Alkyl groups are electron-donating ($+I$ effect),which reduces the partial positive charge on the carbonyl carbon,making it less electrophilic. Comparing the compounds: $(I) HCHO$: No alkyl group. $(II) CH_3CHO$: One methyl group. $(III) CH_3COCH_3$: Two methyl groups. $(IV) CH_3CH_2COCH_2CH_3$: Two ethyl groups (larger than methyl). Therefore,the reactivity order is: $I > II > III > IV$.

Arrange the following compounds in decreasing order of reactivity towards nucleophilic addition reactions:
$(I) HCHO$
$(II) CH_3CHO$
$(III) CH_3COCH_3$
$(IV) CH_3CH_2COCH_2CH_3$

Similar Questions

Which of the following methods uses a rotary shaker?

The average kinetic energy of hydrogen molecules at $300 K$ is $E.$ At the same temperature,the average kinetic energy of oxygen molecules will be

Molten sodium chloride conducts electricity due to the presence of

If the coefficients of the $(2r+1)$-th term and the $(r+2)$-th term in the expansion of $(1+x)^{43}$ are equal,then $r$ is equal to:

Which element is located at the center of the porphyrin ring in chlorophyll?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Arrange the following compounds in decreasing order of reactivity towards nucleophilic addition reactions: $(I) HCHO$ $(II) CH_3CHO$ $(III) CH_3COCH_3$ $(IV) CH_3CH_2COCH_2CH_3$