a, $C_3H_8+Cl_2\buildrel{{as}}\over\to C_3H_7Cl+HCl$
b, $C_4H_{10}\buildrel{{xt, t^o}}\over\to C_4H_8+H_2$
c, $C_3H_8\buildrel{{xt, t^o}}\over\to C_3H_6+H_2$
d, $C_3H_6+H_2\buildrel{{Ni, t^o}}\over\to C_3H_8$
e, $C_3H_4+2Br_2\to C_3H_4Br_4$
f, $C_2H_2+2AgNO_3+2NH_3\to Ag_2C_2+2NH_4NO_3$
g, $C_5H_{10}+\frac{15}{2}O_2\buildrel{{t^o}}\over\to 5CO_2+5H_2O$
h, $C_3H_4+2H_2\buildrel{{Ni, t^o}}\over\to C_3H_8$
