Question

CaC2=X=бензол=бромбензол=фенол=трибромфенол

Answer 1

СаС2+ 2Н2О--C2H2+Ca(OH)2
3C2H2-->C6H6
C6H6+Br2-->C6H5Br+HBr
C6H5Br+NaOH-->C6H5OH+NaBr
C6H5OH+3Br2-->C6H2OHBr3+3HBr

Answer 2

CaC2+2H2O=Ca(OH)2+C2H2 3C2H2=C6H6 C6H6+Br2=C6H5Br+HBr C6H5Br+KOH=C6H5OH+KBr C6H5OH+3Br2=C6H2Br3OH+3HBr