Error:
C2H5OH %2B I2 %2B NaOH %3D CHI3 %2B HCOONa %2B HI
^
Unexpected character ('%')C2H5OH %2B I2 %2B NaOH %3D CHI3 %2B HCOONa %2B HI
^
Unexpected character ('%')