а)CH3-CCl(CH3)-CH2-CH2-CH3+KOH(спирт)=CH3-C(CH3)=CH-CH2-CH3+KCl+H2O
б)CH2Cl-CH(CH3)-CH2-CH2-CH3+KOH=CH2=C(CH3)-CH2-CH2-CH3
CH2=C(CH3)-CH2-CH2-CH3+H2(Ni,t)=CH3-CH(CH3)-CH2-CH2-CH3
CH3-CH(CH3)-CH2-CH2-CH3+Cl2(hv)=CH3-CCl(CH3)-CH2-CH2-CH3+HCl
2CH3-CCl(CH3)-CH2-CH2-CH3+2Na=CH3-C(C6H13)(CH3)-CH2-CH2-CH3+2NaCl