Осуществить превращения c2h2-c6h6-c6h5cl-c6h5oh-c6h5ona

3ch=-ch -> c6h6 (t, kat)

c6h6 + cl2 -> c6h5-cl + hcl

c6h5cl + naoh -> c6h5oh + nacl

c6h5oh + naoh -> c6h5ona + h2o

a)

mg+h2so4 = mgso4+h2

mgcl2 + h2so4 = mgso4 + 2hcl

mg(oh)2 + h2so4 = mgso4 + 2h2o

mgo+h2so4 = mgso4+h2o

mgo+so3 = mgso4

b)

ca+2h2o = ca(oh)2+h2

cacl2+2naoh = ca(oh)2+2nacl

cao+h2o = ca(oh)2

cah2 + 2h2o = ca(oh)2↑+ 2h2↑

na2sio3 + 2 hсl = h2sio3 (осадок) + 2 naсl