Embibe Experts Solutions for Chapter: Hydrocarbons, Exercise 1: AP EAPCET Medical 2021 (6-Sep Forenoon)

Which of the following conditions is suitable for the electrophilic addition reaction over an alkene?

The following reactions are examples for $\underline{\left(\mathrm{i}\right)}$ and $\underline{\left(\mathrm{ii}\right)}.$

I 

II 

Addition of $\mathrm{HBr}$ to propyne takes place through $\mathrm{Z}$. What is $\mathrm{Z}$ ?

The species, which is not aromatic is

The major product of the following reaction is:

${\mathrm{CH}}_2=\mathrm{CHBr}\underset{\mathrm{Red} \mathrm{hot} \mathrm{iron} \mathrm{tube}, 873 \mathrm{K}}{\overset{{\mathrm{NaNH}}_2}{\to }}\mathrm{P}$

Ethyne on passing through red hot iron tube at $873 \mathrm{K}$ gives a cyclic compound $\mathrm{X}$. In this reaction the number of $\pi$-bonds lost and number of $\sigma$ -bonds formed are respectively

Identify the product of the following reaction.