The Student Room Group
Reply 1
ZestDamsel
Ok i need help on dis for ma A2 chemistry please
Compound A,C3H6O,does not give a silver mirror wit tollens reagent.It reacts wit sodium tetrahydridoborate(III) to give B which reacts wit ethanoyl chloride to give C
Identify A,B,C and give equations for da reactions occuring
:confused: :confused: :confused: HELP PLEASE!!!


Ok eye wil halp u.

if silver mirror not formed wit tollen reagent, den compound A must be ketone, because it as da formula of ketone.
B wil b da reduced product of ketone. reduction of ketones giv secondary alcohol. (B = alcohol)
wen ethanoyl chloride is reacted wit a alcohol, den a ester is formed. (C = ester)

I hav halped u bruv.
Reply 2
ZestDamsel
Ok i need help on dis for ma A2 chemistry please
Compound A,C3H6O,does not give a silver mirror wit tollens reagent.It reacts wit sodium tetrahydridoborate(III) to give B which reacts wit ethanoyl chloride to give C
Identify A,B,C and give equations for da reactions occuring
:confused: :confused: :confused: HELP PLEASE!!!


compound A = ketone (prapanone)

A reacts with NaBH4, to give a secondary alcohol (propan-2-ol). This is reduction

Ethanoyl chloride + propan-2-ol = Ester + water

hope that helps! :smile: