Subject Category > General Knowledge

Q. D.D.T. was invented by

A) John Dalton

B) Paul Muller

C) None of these

D) Rudolf

✔ Paul Muller

Additional Information > Exam point of View

DDT (Dichlorodiphenyltrichloroethane) was invented by Swiss chemist Paul Hermann Müller in 1939, who later received the Nobel Prize in Physiology or Medicine for his discovery.

Asked Question

Q 1.National Income estimates in India are prepared by

Right Answer : Central statistical organisation

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Q 2.MS-Word is an example of _____

Right Answer : Application software

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Q 3.The staple food of the Vedic Aryan was

Right Answer : Milk and its products

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Q 4.The tropic of cancer does not pass through which of these Indian states ?

Right Answer : Odisha

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Q 5.Fathometer is used to measure

Right Answer : Ocean depth

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Q 6.A computer cannot "boot" if it does not have the _____

Right Answer : Operating system

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Q 7.The working principle of a washing machine is

Right Answer : centrifugation

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Q 8.Which of the following is NOT a property of bases?

Right Answer : They turn blue litmus red

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Q 9.Among the following the maximum covalent character is shown by the compound(1)MgCl2(2)FeCl2(3)SnCl2(4) AlCl3

Right Answer : Option 4

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Q 10.Which latitude passes through the middle of India?

Right Answer : Tropic of Cancer

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