Thursday 14 March 2013

Explain the following terms with one example each. (a) Corrosion (b) Rancidity


Question 20. Explain the following terms with one example each.
(a) Corrosion
(b) Rancidity
Answer:
Corrosion: It is the process in which metals are slowly eaten up by the action of air moisture or chemicals. For example rusting is a form of corrosion in which iron is eaten up by the action of air and moisture and a reddish brown coating of iron oxide is formed as shown in the following chemical reaction.
Rancidity: When the substance containing oils and fats are exposed to air they get oxidised and become rancid due to which their smell, taste and colour change. This process is known as rancidity. For example when a when butter is kept open for a long time then its smell and taste gets changed.
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22 comments:

  1. Unknown15 June 2013 at 18:28

    thanx dude. it was very helpful

    ReplyDelete
  2. Android - Studio Code Examples17 June 2013 at 11:27

    you are welcome!

    ReplyDelete
  3. Unknown31 March 2015 at 11:13

    Is there any chemical reaction (in terms of equations) for rancidity

    ReplyDelete
  4. Unknown1 May 2015 at 02:22

    thnx this ben very usefull to me thnx once again

    ReplyDelete
  5. Unknown15 September 2015 at 02:48

    Is there any chemical reaction for rancidity....[ in terms of eq. ]?¿

    ReplyDelete
  6. Unknown15 September 2015 at 03:15

    Is there any chemical reaction for rancidity....[ in terms of eq. ]?¿

    ReplyDelete
    Replies
    1. Unknown9 March 2018 at 08:10

      This comment has been removed by the author.

      Delete
    2. Unknown21 April 2019 at 00:53

      thnx its very helful .ЁЯдЧ

      Delete
  7. Ram6 December 2015 at 06:37

    I want equation of chemical reaction.

    ReplyDelete
    Replies
    1. Unknown1 April 2018 at 03:34

      C+O2 ----> CO2 it is a example of combination reaction
      Decomposition reaction 's example ---> CaCO3 ---> CaO + CO2

      Delete
  8. Unknown6 May 2017 at 07:23

    Chutiya rancidity ki eq tera baap dega

    ReplyDelete
  9. Ishant Jangra19 May 2017 at 21:07

    Thnx it is very helpful

    ReplyDelete
  10. Unknown2 June 2017 at 01:05

    Lol....

    ReplyDelete
  11. Unknown26 June 2017 at 05:30

    Thanks for the support .... Very useful siteЁЯШО

    ReplyDelete
  12. Unknown25 March 2018 at 04:41

    Thanx

    ReplyDelete
  13. Unknown30 September 2018 at 04:51

    Thnx ЁЯШЗ

    ReplyDelete
  14. Unknown13 November 2018 at 03:59

    Thank you

    ReplyDelete
  15. Unknown21 March 2019 at 17:55

    Thnx it is very helpful

    ReplyDelete
  16. Preeti Tamrakar10 April 2019 at 09:39

    Thnx for helping☺️ЁЯСН

    ReplyDelete
  17. Satyam24 May 2020 at 19:51

    Not sure

    ReplyDelete

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