In wet digestion procedure ratio of tri acid mixture is

A. 1 : 3 : 9

B. 9 : 3 : 1

C. 3 : 9 : 1

D. None of the above

Answer: Option B

Solution(By Examveda Team)

Wet digestion with concentrated acids is the most common sample pretreatment technique, carried out at atmospheric pressure in open systems or higher pressures in a closed vessel by conductive or microwave heating.
In the wet digestion procedure ratio of tri acid mixture is 9 : 3 : 1.