Organik Bileşiklerin Katılma Tepkimeleri

... tepkimeleri tamamlayınız.

1) [Siklopenten yapısı] $+ H_2 ⟶$

2) [Metil-siklobüten yapısı] $+ HBr ⟶$

3) [Alken yapısı] $+ H_2O ⟶$

4) [Alken yapısı] $+ Cl_2 ⟶$

Soruda görsel içerik var: The image shows several incomplete chemical reaction equations arranged vertically. 1. A skeletal structure of a five-membered ring with one double bond (cyclopentene) reacting with $H_2$. There is a handwritten note 'Siklopentan' above the arrow. 2. A skeletal structure of a four-membered ring (cyclobutane) with a methyl group and an exocyclic double bond, or a methyl-substituted cyclobutene (partially obscured), reacting with $HBr$. 3. A structural formula ending in $C=CH_2$ reacting with $H_2O$. 4. A reaction involving $Cl_2$ at the bottom.