Question

Match the acids given in Column (A) with their correct source given in Column (B) :

Answer 1

Lactic acid ($C_2{H}_{4}OHCOOH$) is found primarily in sour milk products, thus lactic acid matches with Curd.

Acetic acid ($C{H}_{3}C{O}_{2}Hor{C}_2{H}_4{O}_2$) : Vinegar is roughly 3 %-9 % acetic acid by volume.

Citric acid ($C_6{H}_8{O}_7$) : It is a natural preservative which occurs naturally in citrous fruit like lemon.

Oxalic acid ($H_2{C}_2{O}_4$) : Tomato contain oxalic acid.
Thus A = 4, B = 3, C = 2, D = 1 is correct match.