Brain is presented for study in -: (A) 10% formalin, (B) 20% formalin, (C) 30% formalin, (D) 40% formalin
Answer is A. Ans. is 'a' i.e. 10% formalin 10% formalin is used as preservative for histopathological examination of tissue but not used for poisoning or chemical analysis.