Advertisements
Advertisements
प्रश्न
Give the uses of DDT.
Describe the uses of the following compound:
DDT
Advertisements
उत्तर
- DDT (p, p’-dichlorodiphenyltrichloroethane) is used as an insecticide mainly against mosquitoes.
- DDT is primarily used as an insecticide.
- It is applied to control insect pests that spread diseases such as malaria, typhus, and yellow fever.
- It is used in agriculture to protect crops from harmful insects.
- DDT plays a significant role in public health vector control programs by reducing populations of disease-carrying mosquitoes.
- It is manufactured using chlorine and used alongside other insecticides like BHC.
APPEARS IN
संबंधित प्रश्न
Draw structure of DDT.
Write the environmental effects of DDT.
Give balanced equations for the following reactions:
Acetic anhydride with phosphorus pentachloride.
Give balanced equations for the following reaction:
Acetaldehyde with hydroxylamine.
Write balanced chemical equation for the following reaction:
Methyl magnesium iodide is treated with carbon dioxide and the product hydrolysed in acidic medium.
Give a balanced chemical equation to convert methyl cyanide to ethyl alcohol.
Phosgene is a common name for ____________.
\[\ce{CH3CH2CH2Br + NaCN -> CH3CH2CH2CN + NaBr}\], will be fastest in:
Name the alkene which will yield 1-chloro-1-methylcyclohexane by its reaction with \[\ce{HCl}\]. Write the reactions involved.
Match the compounds given in Column I with the effects given in Column II.
| Column I | Column II | |
| (i) | Chloramphenicol | (a) Malaria |
| (ii) | Thyroxine | (b) Anaesthetic |
| (iii) | Chloroquine | (c) Typhoid fever |
| (iv) | Chloroform | (d) Goiter |
| (e) Blood substituent |
Assertion: It is difficult to replace chlorine by –OH in chlorobenzene in comparison to that in chloroethane.
Reason: Chlorine-carbon \[\ce{(C - Cl)}\] bond in chlorobenzene has a partial double bond character due to resonance.
The shape of methyl carbanion is similar to that of–
If chloroform is left open in air in the presence of sunlight, it gives
Sodium ethoxide react with ethyl iodide to yield.
Chloroform on reduction with Zn an HCI (all) gives:-
Give the IUPAC name of the following compound:
\[\ce{(CCl3)3CCl}\]
Iodoform can be prepared from all except:
