Question

Given below are two statements:
Statement (I): Formalin is used for preservation of milk samples meant for chemical analysis.
Statement (II): Mercuric chloride is used as preservative for milk samples meant for cryoscopic analysis (test for freezing point depression).
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (I) and Statement (II) are true
• B. Both Statement (I) and Statement (II) are false
• C. Statement (I) is true but Statement (II) is false
• D. Statement (I) is false but Statement (II) is true

Hint:

Remember that cryoscopic analysis (freezing point test) is extremely sensitive to added solutes.
Never use ionic or highly soluble chemical preservatives in milk samples meant for freezing point determinations, as they will artificially lower the freezing point and mask added water.

Answer 1

The Correct Option is C