Which of the following undergoes reduction (b | vedclass

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

Question

(A) The rate of catalytic hydrogenation of alkenes depends on the stability of the alkene. More substituted alkenes are more stable and have lower hea

Vedclass · Accepted Answer

$CH_3-CH_2-CH=CH_2$

Vedclass · Answer

(A) The rate of catalytic hydrogenation of alkenes depends on the stability of the alkene. More substituted alkenes are more stable and have lower heat of hydrogenation,thus they react slower. Less substituted alkenes are less stable and have higher heat of hydrogenation,thus they react faster. Comparing the given structures: $A$: $CH_3-CH_2-CH=CH_2$ (monosubstituted) $B$: $CH_3-CH=CH-CH_3$ (disubstituted,cis) $C$: $CH_3-CH=CH-CH_3$ (disubstituted,trans) $D$: $(CH_3)_2C=CH_2$ (disubstituted) Among these,the monosubstituted alkene $(A)$ is the least stable and therefore undergoes hydrogenation at the fastest rate.

Which of the following undergoes reduction (by $H_2|Ni$) at the fastest rate?

Similar Questions

Which of the following compounds was the starting material for the oxidation shown below?
$Compound \xrightarrow{KMnO_4 / H^{\oplus}} \text{Product}$

$R_f$ value for $2$-methylpropene in a solvent system (Ethyl acetate + ether) is $0.42$. $2$-methylpropene is treated with dilute $H_2SO_4$ to give major organic product $(X)$. $R_f$ value for $(X)$ in the same solvent system under identical condition will be:

An alkene,on ozonolysis,gives formaldehyde and acetaldehyde. The alkene is:

How many distinct alkenes are obtained from $3-$bromo$-3-$methylhexane upon treatment with alcoholic $KOH$?

The principal organic product formed in the reaction given below is
$CH_2 = CH(CH_2)_8COOH + HBr \xrightarrow{\text{peroxide}} ....$

Vedclass Test Series

Exam Paper Generator

Online Exam Module