What is Markovnikov's Rule?
'''Markovnikov's rule''' or '''Markownikoff's rule''' started that in addition to polar reagent to unsymmetrical alkene the negative part of the polar reagent ([[Chlorine|Cl]], OH, F etc) is attached to the carbon having the lowest number of hydrogen while the positive part of the polar reagent (H,Na,Mg,Al etc) is attached to the carbon having the highest number of hydrogen.<ref>{{Cite web|date=2015-11-27|title=Markovnikov’s Rule|url=https://chem.libretexts.org/Ancillary_Materials/Reference/Organic_Chemistry_Glossary/Markovnikovs_Rule|access-date=2021-04-07|website=Chemistry LibreTexts|language=en}}</ref> The rule was postulated by [[Vladimir Markovnikov]]. {{Infobox chemical analysis|image=MarkovnikovRulePropeneHBr.svg}} == Explanation == From the above diagram, the reactant which is prop-1-ene which unsymmetrical alkene, it's reacting with [[Hydrobromic acid]] (Hydrogen Bromide) which is the polar reagent. When this [[hydrogen bromide]] dissociate it yield H+ and Br-. The positive part of this polar reagent (H+) is attached to the carbon in between the double bond with highest number of hydrogen while the negative part of this polar reagent (Br-) is attached to the carbon in between the double with the lowest number of hydrogen. It's usually go with addition reactant.<ref>{{Cite web|title=Illustrated Glossary of Organic Chemistry - Markovnikov's rule (Markovnikov addition)|url=http://www.chem.ucla.edu/~harding/IGOC/M/markovnikovs_rule.html#:~:text=Markovnikov%27s%20rule%20(Markovnikov%20addition):,the%20starting%20alkene%20or%20alkyne.|access-date=2021-04-07|website=www.chem.ucla.edu}}</ref><ref>{{Cite web|title=Markovnikov's Rule|url=https://www.organic-chemistry.org/namedreactions/markovnikovs-rule.shtm|access-date=2021-04-07|website=www.organic-chemistry.org}}</ref><ref>{{Cite web|title=ORGANIC CHEMISTRY / MARKOVNIKOV'S RULE - Pathwayz|url=https://www.pathwayz.org/Tree/Plain/MARKOVNIKOV%27S+RULE|access-date=2021-04-07|website=www.pathwayz.org}}</ref> == Anti-Markovnikov's Rule == Anti-Markovnikov's rule o