What happens when : (i) Carbon dioxideis passedthroughan aqueous solution of sodium metaborate. (ii) Boric acid is heated with ethyl alcohol in presence ofconcentrated sulphuricacid.

What happens when : (i) Carbon dioxideis passedthroughan aqueous solut

1.	What happens when : (i) Carbon dioxideis passedthroughan aqueous solution of sodium metaborate. (ii) Boric acid is heated with ethyl alcohol in presence ofconcentrated sulphuricacid.
Answer» Solution :(i) A mixtureof sodiumtetraborate and SODIUM carbonatea formed. `underset(" SOD.Metaborate ")(4NaBO_(2))+CO_(2) rarr underset(" Sod. Tetraborate ")(Na_(2)B_(4)O_(7)) + underset(" Sod. Carbonate ")(Na_(2)CO_(2))` (II) Triethylborate is formed. `H_(3)NO_(3)+3C_(2)H_(5)OH overset("Conc." H_(2)SO_(4))rarrunderset("Triethylborate")(B(OC_(2)H_(5))_(3)) + 3H_(2)O`