The colour of water is expressed in numbers of a -
(a) silica scale
(b) platinum cobalt scale
(c) p0 value
(d) none of these.
The correct Answer Is
(b) platinum cobalt scale
(a) silica scale
(b) platinum cobalt scale
(c) p0 value
(d) none of these.
The correct Answer Is
(b) platinum cobalt scale