A. Turmeric on filter paper
B. Silica gel coated with silver nitrate
C. potassium permanganate-sulphuric acid
D. Potassium dichromatic-sulphuric acid
Submitted by: Rashid Mehmood
A. Turmeric on filter paper
B. Silica gel coated with silver nitrate
C. potassium permanganate-sulphuric acid
D. Potassium dichromatic-sulphuric acid
Submitted by: Rashid Mehmood
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