1.

Which of the following is environmental friendly reaction

Answer»

A + B `RARR` C (wanted)
HOCI (g) `overset(vartheta)(rarr) OH + CL(g)`
`CF_(2) CI_(2) (g) overset(vartheta)(rarr) Cl(g) + CF_(2) - Cl(g)`
`NO + O_(3) overset("STRATO sphere")(rarr) NO_(2) + O_(2) `

Answer :A


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