In Kastle-Mayer test, which of the following reagents are used?
A. Benzidine
B. Phenolphthalein
C. O-toulidine
D. Luminol
Answer:B
In Kastle-Mayer test, which of the following reagents are used?
A. Benzidine B. Phenolphthalein C. O-toulidine D. Luminol