Question

Which of the following is used as green solvent?

Options

• H₂O

• CH₂Cl₂

• CHCl₃ 

• CCl₄

Answer 1

H₂O

Explanation:

Water or supercritical CO₂ can be used in place of volatile halogenated organic solvents (such as CH₂Cl_2, CHCl_3, CCl₄) for chemical synthesis and other purposes. H₂O is a safe, benign solvent while CH₂Cl₂ is hazardous.