Substituted Substituent

Q. 78 Addition of HCl to 3, 3, 3-trichloropropene gives

Q. The Compound that doesnot contain a primary carbon is

1. Ethylbenzene

2. Cyclopentane

3. 2- phenyl Propanal

4. Pent - 4 - yn - 2- one

Q. The correct structure for the compound 1, 2-diethyl-1, 8-dimethyl-5-propylcyclooctane is:

1. 
2. 
3. 
4. 

Q. Explain in brief

Q. ​Which of the following compound can show resonance ?

$$\begin{gathered} \left(1\right)C{H}_2=CH-CH=C{H}_2\left(2\right)C{H}_2=CH-CHO \\ \left(3\right)C{H}_2=CH-N{H}_2\left(4\right)Allofthese \end{gathered}$$