Who discovered Nitrogen?
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The reactions in which oxidation and reduction occur simultaneously are called _______.
Rodentia Sciurus is the scientific name of
Brain fever is a disease spread through which of the following?
Electric chair was invented by
The tag line "Do no Evil" is owned by
A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :
The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by