CH_(3) - CH_(2) - CH - overset(overset(CH(CH_(3))_(2))(|))(CH) - underset(underset(H_(3)C- CH- CH_(2) - CH_(3))(|))(CH) - CH_(2) - CH_(2) - CH_(2) - CH_(2) - CH_(3) Which IUPAC name is write from these name 5-sec-Butyl-4-isopropyldecane and 4-isopropyl-5-(1-methylpropyl) Decane?

CH_(3) - CH_(2) - CH - overset(overset(CH(CH_(3))_(2))(|))(CH) - under

1.	CH_(3) - CH_(2) - CH - overset(overset(CH(CH_(3))_(2))(\|))(CH) - underset(underset(H_(3)C- CH- CH_(2) - CH_(3))(\|))(CH) - CH_(2) - CH_(2) - CH_(2) - CH_(2) - CH_(3) Which IUPAC name is write from these name 5-sec-Butyl-4-isopropyldecane and 4-isopropyl-5-(1-methylpropyl) Decane?
Answer» SOLUTION :Both IUPAC name are right but in bracket name the PROPYL is WRITTEN after methyl