Цепочка. x1(cl2 и свет) - x2(nh3) - x3(hno2) - x4(HCOOH) - x5(h2) - x . В скобках указаны условия и то с чем взаимодействуют вещества

CH3-COOH+Cl2=CH2Cl-COOH+HCl

CH2Cl-COOH+NH3=CH2-COOH+HCl

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                                        NH2

CH2-COOH+HNO2=CH2-COOH+N2+H2O

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NH2                              OH

CH2-COOH+H-COOH=COOH-CH2-O-CO-H+H2O

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OH

COOH-CH2-O-CO-H+H2=COOH-CH2-O-CH2OH

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