The reactions in which oxidation and reduction occur simultaneously are called _______.
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Sound can not travel in which of the following medium?
A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor.
The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called ___
There are total _________ parliamentary seats (Rajya Sabha constituency) in Tripura.
G-20 is the Group of Twenty largest economies represented by their
The most abundant metal in the Earth's crust is
Who is the author of "The Secret of the Nagas"?