1.

CH_3-CH = CH_2+NOCl rarrP, Identify the adduct.

Answer»

`CH_3-undersetunderset(CL)|CH-undersetunderset(NO)|CH_2`
`CH_3-undersetunderset(Cl)|CH-undersetunderset(NO)|CH_2`
`CH_3-CH_2-undersetunderset(Cl)|oversetoverset(NO)|CH`
`undersetunderset"NO"|CH_2-CH_2-undersetunderset(Cl)|CH_2`

Solution :`underset"propylene"(CH_3-CH)=CH_2+NbarOCl^(+)to underset"Propylene nitroso chloride"(CH_3-undersetunderset(Cl)|CH-undersetunderset(NO)|CH_2)`
This reaction is an example of electrophilic addition reaction and in it addition takes place according to Markownikoff's rule.
("NEGATIVE part of additive reagent adds less hydrogenated or more substituted CARBON atom of double bond of unsymmetrical alkene"). It is also REPRESENTED in form of following mechanism


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