Arrange the stability of the given gem-diols | vedclass

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

Question

(A) The stability of gem-diols is governed by the bond angles within the ring. In small rings,the internal bond angle is constrained (e.g.,$60^{\circ}

Vedclass · Accepted Answer

$III > II > I$

Vedclass · Answer

(A) The stability of gem-diols is governed by the bond angles within the ring. In small rings,the internal bond angle is constrained (e.g.,$60^{\circ}$ in cyclopropane,$90^{\circ}$ in cyclobutane).When two hydroxyl $(-OH)$ groups are attached to the same carbon,there is significant steric repulsion between them. This repulsion is minimized when the bond angle between the two $-OH$ groups is larger.As the ring size increases from cyclopropane $(I)$ to cyclobutane $(II)$ to cyclopentane $(III)$,the internal bond angle increases,which allows the $-OH$ groups to move further apart,reducing steric hindrance and increasing stability.Therefore,the stability order is $III > II > I$.

List-$I$	List-$II$
$A.$ Butane $\to$ Isobutane	$(a).$ Cracking
$B.$ Butane $\to$ Lower hydrocarbons	$(b).$ Isomerisation
$C.$ $n-$Heptane $\to$ Toluene	$(c).$ Reed reaction
$D.$ Propane $\to CH_3CH_2CH_2SO_2Cl$	$(d).$ Aromatization

Arrange the stability of the given gem-diols in decreasing order:
$I$: Cyclopropane$-1,1-$diol
$II$: Cyclobutane$-1,1-$diol
$III$: Cyclopentane$-1,1-$diol

Similar Questions

The product of the reaction shown below will be:

For the following compounds,write structural formulas and $IUPAC$ names for all possible isomers having the number of double or triple bonds as indicated:
$(a)$ $C_4H_8$ (one double bond)
$(b)$ $C_5H_8$ (one triple bond)

Which of the following reactions produce the same product?

The product $(B)$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Arrange the stability of the given gem-diols in decreasing order:$I$: Cyclopropane$-1,1-$diol$II$: Cyclobutane$-1,1-$diol$III$: Cyclopentane$-1,1-$diol