Answer Happy

Reference:
Following the previous question, what happens from point B to point C? O Chlorine reacts with readily oxidizable matters O Chlorine reacts with natural organic matter to form disinfection by-products. O Chloramines are destroyed by chlorine O Chlorine reacts with ammonia to form chloramines
Referring to the breakpoint chlorination curve shown below, what is the concentration of combined chlorine residual at chlorine dose of 8 mg/L? Destruction of chlorine residual by reducing compounds Formation of chloro-organic and chloramine compounds Destruction of chloramines and chloro-organic compounds Formation of free chlorine and presence of chloro-organic compounds not destroyed Free residual Combined residual 1 5 6 7 10 Chlorine dose, mg/L 4 3 Chlorine residuals, mg/L 2 620 mg/L O 1.2 mg/L O 3.0 mg/t 6) 0,0 mg/L 8. 11