CHEMISTRY P1 HELP!!

[walidbinkhalid]

Hey guys I am stuck in a question and need URGENT help!
question 21 ,22 of this paper! http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_13.pdf

 

[Abhi Mevawala]

q21
J reacts with NaOH(aq) to produce an organic ion with a charge of –1.
so it indicattes tht there is one acid
An organic compound J reacts with sodium to produce an organic ion with a charge of –3.
so one acid n other two acids or alcohol
so and is C

 

[DumbIdiot]

no 21
-oh reacts with na but not naoh to form o-
-cooh reacts with both na and naoh to form co0-

so the answer must be C ( 2 -0h and 1 -cooh )

no 22

process occuring is esterification ( where and -0h group and -c00h groups react to form c02c bond)
break the c-o bond (single bond ) and add an h atom to the each of the four resulting -0 and -c0 and u`ll end end with 2 identical molecules ( HOCH2COOH)

 

[DumbIdiot]

q21
J reacts with NaOH(aq) to produce an organic ion with a charge of –1.
so it indicattes tht there is one acid
An organic compound J reacts with sodium to produce an organic ion with a charge of –3.
so one acid n other two acids or alcohol
so and is C

actually its exactly one acid and 2 alcohol

if there were 3 acid , the molecule would produce an anion with –3 in both cases