Home
Class 12
CHEMISTRY
Explain the principle of removal of rust...

Explain the principle of removal of rust stains from clothes using oxalic acid solution.

Text Solution

Verified by Experts

Rust is `Fe_(2)O_(3).` Ferric `(Fe^(3+)` ion reacts with oxalate `(C_(2)O_(4)^(2-))` ion to form a complex ion that is soluble in water.
`H_(2)C_(2)O_(4)" [oxalic acid]" hArr 2H^(+)+C_(2)O_(4)^(2-)" [oxalate ion]"`
`Fe^(3+)+3C_(2)O_(4)^(2-) rarr underset(" Complex ion (soluble)")([Fe(C_(2)O_(4))_(3)]^(3-)`
The clothes are first treated with oxalic acid solution and then rinsed well with water 10 remove the rust stains.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTIONS (ENGINEERING AND MEDICAL ARCHIVE) (WBJEE)|8 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTIONS (ENGINEERING AND MEDICAL ARCHIVE) (JEE-MAIN)|13 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT EXERCISE QUESTIONS)|71 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos

Similar Questions

Explore conceptually related problems

Mention the uses of oxalic acid.

What can be used to remove iodine stain from clothes and why?

Knowledge Check

  • Calculate the normality of a solution containing 3.15g of hydrated oxalic acid dissolved in 300 ml of the solution

    A
    8.5 N
    B
    4.6 N
    C
    0.5N
    D
    0.2 N

  • 25 cm^3 of oxalic acid completely neutralised 0. 064g of sodium hydroxide. Molarity of the oxalic acid solution is

    A
    0.064
    B
    0.045
    C
    0.015
    D
    0.032

    • Similar Questions

    Explore conceptually related problems

    Explain the working principle of hydraulic press using Pascal's law.

    What is the "principle of multiplication of thrust"? Explain this principle from Pascal's law. (Similar question : Derive working principle of hydraulic press from Pascal's law.)

    Explain the working principle of a Van de Graaff generator. State its uses.

    Explain why does the colour of KMnO_(4) disappear when oxalic acid is added to its solution in acidic medium.

    Explain the action of glycerol with (i) oxalic acid at 383 K (ii) oxalic acid at 530 K (iii) concentrated HNO_(3) and H_(2)SO_(4) .

    Explain the principle on which the working of a potentiometre is based. Why is the use of a potentiometer preferred over that of a voltmeter for measurement of e.m.f. of a cell?

    Home
    Profile