Question

90) Which of the following liquid insecticide is used for
Malaria vector control as per WHO guidelines?
A) Sodium chloride
B) Sodium bicarbonate
C) DDT
D) Acetic acid​

Answer 1

The liquid insecticide used is DDT.

• DDT refers to the compound Dichlorodiphenyltrichloroethane, .
• The discovery of DDT in the year 1940 was marked as a turning point in malaria prevention.
• When sprayed on house walls, the insecticide is very effective at destroying mosquitos that are sleeping indoors. It is inexpensive and successful over a long period of time.

Answer 2

DDT a liquid insecticide is used for Malaria vector control as per WHO guidelines.

Option (C) DDT is a correct option.

• Sodium chloride (NaCl) is made up of sodium and chloride and it is also known as salt.
• Sodium bicarbonate, also known as baking soda. Its chemical formula is NaHCO₃. It is an antacid.
• Chemical formula of Acetic acid​ is CH3COOH. It is used as food preservative.

Some more information:

• DDT (Dichloro-Diphenyl-Trichloroethane) was the first modern pesticide used against malaria.
• After 1950, it started being used as an agricultural insecticide.
• Its main use is in controlling mosquitoes, bedbugs, etc.
• It is a colorless, tasteless and odorless crystalline chemical compound.
• Austrian chemist Othmar Zeidler in 1874 first synthesized DDT.
• Its pesticide effect was discovered in 1939 by Swiss chemist Paul Herman Müller.

Learn more:

द मॉडर्न यूनिवर्स नामक पुस्तक के लेखक कौन है​

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पुरुषोत्तम अग्रवाल को उनकी किस रचना के लिए

'देवीशंकर अवस्थी स्मृति सम्मान' प्रदान किया गया?

A) विचार का अनंत

B) तीसरा रुख

C) संस्कृति : वर्चस्व और प्रतिरोध

D) अकथ कहानी प्रेम की : कबीर की कविता और उनका

समय

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