Uses

Question 1

State environmental effects of dichloromethane

Answer 1

Effects :-
- Overexposure causes dizziness and fatigue.
- Damages cornea

Question 2

What compounds can be used as propellents in aerosols?

Answer 2

Dichloromethane (CH2Cl2) and Frenons (Organic compounds of Cl, F and CFCs)

Question 3

What are the adverse effects of DDT

Dichlorodiphenyltrichloroethane

Answer 3

• Exposure to high dose may cause vomitting or dizziness.
• Has adverse effects on liver and reproduction
• DDT is an organic pollutant which is readily absorbed in soil.
• When dissolved in oil or lipids, it can easily be absorbed by skin.
• It is resistant to metabolism.
• It accumulates is fatty tissues.

Question 4

Which compound is used as antiseptic

Answer 4

Iodoform CH3I3

Question 5

What is used as solvent for extraction of gums fats and resins?

Hint - source of dichlorocarbene

Answer 5

Chloroform CH-Cl3

Question 6

Mention uses of CCl4

Answer 6

• Solvent of oils, fats and resins
• Source of chlorine
• Used as a cleaning agent

Question 7

Where is DDT used

Answer 7

DDT is used as an insecticide

Question 8

What happens when CHCl3 is exposed to air and light

Answer 8

It forms a poisonous compund called phosgene

Question 9

Which compound is toxic to the liver and carcinogenic?

Answer 9

CCl4

Question 10

What compounds are responsible for depletion of ozone layer?

Answer 10

Frenons