1) C₃H₈->C₃H₆+H₂
2) C₃H₆+HBr->C₃H₇Br
3) C₃H₇Br+2Na->2NaCl+C₆H₁₄
t,Pt
4) C₆H₁₄->C₆H₁₂+H₂
Pd/Pt, ₃₀₀°c
5) C₆H₁₂->C₆H₆+3H₂
A-C₃H₇Br
Б-C₆H₆
