Multiple choice

Among the following compounds, ---------------------- acts as a precursor to food and fertilizers.

  1. Aluminium hydroxide

  2. Aluminium nitrate

  3. Aluminium sulfate

  4. Ammonia
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D Correct answer
Explanation

Ammonia is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceuticals.

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