Question

52. Write one use of each of the following:
(i) Chloroform
(ii) Iodoform
(iii) Freon

(iv) DDT ​

Answer 1

Answer:

Chloroform is a man-made by-product formed when chlorine is used to disinfect water

Iodoform is an organoiodine compound with the formula CHI3 and a tetrahedral molecular geometry. It is a relatively water-insoluble yellow solid that is chemically reactive in free-radical reactions.

Freon, (trademark), any of several simple fluorinated aliphatic organic compounds that are used in commerce and industry. In addition to fluorine and carbon, Freons often contain hydrogen, chlorine, or bromine. ... The name Freon is a trademark registered by E.I. du Pont de Nemours & Company.

Explanation:

Answer 2

(i) Chloroform :- (a) it is used in the building, paper and board industries, and in pesticide and film production.

(B) It is used as a solvent for lacquers, floor polishes, resins, adhesives, alkaloids, fats, oils etc.

(C) Chloroform is used as a solvent, a substance that helps other substances dissolve. It is used as a solvent for lacquers, floor polishes, resins, adhesives, alkaloids, fats, oils etc.

(ii) Iodoform :-Iodoform was used for an antiseptic .

The antiseptic property of iodoform is only due to the liberation of free iodine when it comes in contact with the skin.

(iii) Freon :-(a) It is used as a refrigerant in refrigerators and air conditioners.

(b) It is used in aerosol spray propellants such as body sprays, hair sprays, etc.

However, it damages the ozone layer that's why now days this is banned by UN .

(iv) DDT ​: -it is used for insecticides and very useful in agriculture .It is very effective against mosquitoes and lice and other harmful insects for human health.

But due its harmful effect in current days it banned by international Union.

Bro ,it is also helpful for upcoming year 12 th board on march -April 2021

So like my answer it is also useful for other friends.

Thanks