Which one of the following is an eco-friendly solvent ?

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Liquid ammonia

Carbon disulphide

Benzene

Water

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This question was previously asked in

UPSC CISF-AC-EXE – 2018

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An eco-friendly or green solvent minimizes environmental impact. Water is considered the most eco-friendly solvent due to its abundance, low cost, non-toxicity, non-flammability, and lack of harmful vapours. Other options are less environmentally friendly: Liquid ammonia is corrosive and toxic. Carbon disulphide is toxic, highly flammable, and volatile. Benzene is a known carcinogen, toxic, and volatile.

Water is widely regarded as the most eco-friendly solvent.

Green chemistry aims to design chemical products and processes that reduce or eliminate the use and generation of hazardous substances. Choosing appropriate solvents is a key aspect of green chemistry.

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