Hydrogenation of naphthalene (P) with excess | vedclass

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

Question

(B) Naphthalene $(P)$ consists of two fused benzene rings. When one ring is hydrogenated to form $1, 2, 3, 4-$ tetrahydronaphthalene $(Q)$,the remaini

Vedclass · Accepted Answer

one aromatic ring of $P$ is more reactive than the aromatic ring of $Q$

Vedclass · Answer

(B) Naphthalene $(P)$ consists of two fused benzene rings. When one ring is hydrogenated to form $1, 2, 3, 4-$ tetrahydronaphthalene $(Q)$,the remaining ring in $(Q)$ is a benzene ring. The aromaticity of the benzene ring in $(Q)$ makes it significantly more stable and less reactive towards further hydrogenation compared to the aromatic rings in naphthalene $(P)$. This difference in reactivity,where the aromatic ring of $(P)$ is more reactive than the aromatic ring of $(Q)$,is known as the annelation effect. Therefore,the correct conclusion is that one aromatic ring of $(P)$ is more reactive than the aromatic ring of $(Q)$.

Hydrogenation of naphthalene $(P)$ with excess hydrogen gas stops cleanly at $1, 2, 3, 4-$ tetrahydronaphthalene $(Q).$ What conclusion can be drawn from this experiment?

Similar Questions

In chlorination of benzene,the reactive species is

Benzene does not undergo addition reactions easily because ...............

What is '$X$' in the given reaction?
$C_6H_6 + CH_2=CH_2 \xrightarrow{\text{Anhydrous } AlCl_3} X$

Among the given compounds,which one is not aromatic?

Answer the following question: $(i)$ Give the isomers of the aromatic hydrocarbon having the molecular formula $C_8H_{10}$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module