1) CH3-CH(CH3)-CH2-CH2-OH ---t>140*C, H2SO4(конц)----> CH3-CH(CH3)-CH=CH2 + H2O 2) CH3-CH(CH3)-CH=CH2 + H2O ----H2SO4, t*-----> CH3-CH(CH3)-CH(OH)-CH3 3) 5CH3-CH(CH3)-CH(OH)-CH3 + 2KMnO4 + 3H2SO4 -----> 5CH3-CH(CH3)-CH(O)-CH3 + 2MnSO4 + K2SO4 + 8H2O