ОВР
1. CH3-CH=CH-CH2-CH3 + K2Cr2O7 + H2O

2. CH3-CH=CH-CH2-CH3 + K2Cr2O7 + H2SO4

3. CH3-CH=CH-CH2-CH3 + K2Cr2O7 + КOН

4. CH3-CH=C- CH2-CH3 + K2Cr2O7 + H2SO4

CH3

5. CH3-CН=CН-CH=CH2 + KMnO4 + H2SO4