Reactivity order for SN1
`(i) CH_(3)-underset(Cl)underset(|)(CH)-CH_(2)-CH_(3)`
(ii) `Ph-CH_(2)-underset(Cl)underset(|)(CH)-CH_(3)`
(iii) `CH_(3)-overset(Cl)overset(|)underset(OCH_(3))underset(|)C-CH_(3)`
(iv) `CH_(3)CH_(2)-CH_(2)-Cl`

CH_(3)-underset(OH)underset(|)(CH)-CH_(2)Cl

Give the IUPAC names of the following : (i) CH_(3)-underset(OH)underset(|)(CH)-CH_(2)-Cl (ii) CH_(3)-CH_(2)-CH_(2)-underset(C_(6)H_(5))underset(|)overset(OH)overset(|)(C)-CH_(2)-CH_(3) (iii) CH_(3)-overset(OH)overset(|)(CH)-underset(CH_(3))underset(|)(CH)-CH_(3) (iv) CH_(3)-CH_(2)-overset(CH_(2)Cl)overset(|)(CH)-CH_(2)-OH (v) CH_(3)-CH_(2)-overset(CH_(2)OH)overset(|)(CH)-CH_(2)-CH_(3) (vi) CH_(3)-underset(OH)underset(|)(CH)-CH=CH_(2) (vii) CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)-CH_(2)-OH (viii) CH_(3)-underset(Br)underset(|)overset(CH_(3))overset(|)(C)-underset(Br)underset(|)overset(CH_(3))overset(|)(C)-CH_(2)-CH_(2)-OH (ix) CH_(3)-CH=CH-underset(OH)underset(|)(CH)-CH_(2)-CH_(3) (x) CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)-underset(OH)underset(|)(CH)-CH_(3) (xi) CH_(3)-O-underset(CH_(3))underset(|)(CH)-CH_(3) (xii) CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-OH

Give the IUPAC name of CH_(3)-underset(Cl)underset(|)overset(2)(CH)-CH_(2)-CH_(3)

CH_(3)-underset(Cl)underset(|)(C )H-underset(I)underset(|)(C )H-CH_(3) CH_(3)-underset(CH_(3))underset(|)(C)H-(CH_(2))_(4)-underset(CH_(3))underset(|)(C )H-underset(Br)underset(|)(C )H-CH_(2)CH_(3)

CH_(3)-underset(Cl)underset(|)(C )H-underset(I)underset(|)(C )H-CH_(3) CH_(3)-underset(CH_(3))underset(|)(C)H-(CH_(2))_(4)-underset(CH_(3))underset(|)(C )H-underset(Br)underset(|)(C )H-CH_(2)CH_(3)