Phenol red indicator changes from yellow to red in the pH range from 6.6 to 8.0. Without making detailed calculations, state what color the indicator will assume in each of the following solutions: 

(a) 0.10 M KOH;

(b) 0.10 M CH₃COOH; 

(c) 0.10 M NH₄NO₃; 

(d) 0.10 M HBr; 

(e) 0.10 M NaCN; 

(f) 0.10 M CH₃COOH–0.10 M NaCH₃COO.