Question:easy
For toxicological analysis, viscera is stored or preserved in which medium?
For toxicological analysis, viscera is stored or preserved in which medium?
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Inert, non-reactive medium - saturated common salt, never formalin or alcohol.
Updated On: Jun 23, 2026
- Glycerine
- Rectified spirit
- Formalin
- Saturated salt solution
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: The preservative for a poison case must be chemically inert toward the suspected toxin so that the chemical examiner can still detect it.
Step 2: Saturated common salt ($NaCl$) solution meets this requirement and is the routine medium for viscera sent for toxicological analysis.
Step 3: Alcohol (rectified spirit) is itself analysable as a poison and so is generally avoided for viscera preservation.
Step 4: Formalin is outright unacceptable because it denatures proteins and reacts with chemicals, destroying the very evidence sought; glycerine is not a recognised preservative either.
\[\boxed{\text{Saturated salt solution}}\]
Step 2: Saturated common salt ($NaCl$) solution meets this requirement and is the routine medium for viscera sent for toxicological analysis.
Step 3: Alcohol (rectified spirit) is itself analysable as a poison and so is generally avoided for viscera preservation.
Step 4: Formalin is outright unacceptable because it denatures proteins and reacts with chemicals, destroying the very evidence sought; glycerine is not a recognised preservative either.
\[\boxed{\text{Saturated salt solution}}\]
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