20-Feb-2025 Theme: 'Acids'

(1) What acid is produced by ants?

Answer: Formic acid.

(2) Which of the following is not an acid: (a) DNA (b) LSD (c) Ammonia (d) Spirits of Salts (e) Oil of Vitriol.

Answer: (c) Ammonia

(3) What does pH stand for?

Answer: Potential of Hydrogen.

(4) What mineral in Acid Sulphate Soils reacts with oxygen when exposed to produce sulphuric acid?

Answer: Pyrite (or iron sulphide).

(5) What is the origin of litmus dye, used in measuring acidity?

Answer: Extracted from lichens.

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