Q. The negative part of the addendum (the molecule to be added) adds on to the carbon atom of the double bond containing the least number of hydrogen atoms. This rule is known as

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Solution:

According to the Markovnikovs rule, the negative part of the unsymmetrical reagent adds to less hydrogenated ( more substituted) carbon atom of the double bond. So here the negative part of the addendum gets attach to that carbon which possess lesser number of hydrogen atoms.