Dead organs are usually kept in Formalin. Formalin One:
A. Aqueous is formaldehyde
B. Aqueous is ferrous-sulphate
C. Aqueous is formic acid
D. Aqueous is ferric alum
Answer: Option A
A. Aqueous is formaldehyde
B. Aqueous is ferrous-sulphate
C. Aqueous is formic acid
D. Aqueous is ferric alum
Answer: Option A
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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