जॉइन Examsbookउत्तर : 3. "Formaldehyde"
Which of the following is used to preserve specimens in the biology laboratory?5
प्र: Which of the following is used to preserve specimens in the biology laboratory?
- 1Phenolfalse
- 2Benzaldehydefalse
- 3Formaldehydetrue
- 4Acetic acidfalse
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उत्तर : 3. "Formaldehyde"
व्याख्या :
Answer: C) Formaldehyde Explanation: A 40% solution of Formaldehyde known as Formalin is used in the preservation of biological specimens because of its hardening action on proteins.

