Q698
Which of the following is used to remove ink and rust stains on cloth?
A.
Oxalic acid
AnswerB.
Alcohol
C.
Ether
D.
Kerosene oil
Answer: Option A
Solution
Answer: Option A
Solution:
Oxalic acid is a reducing agent and its conjugate base, known as oxalate, is a chelating agent for metal cations and stain removal. Oxalic acid's main applications include cleaning or bleaching, removal of stains on clothes and the removal of rust.