Who has been appointed as the Chief Secretary of the Delhi Government in December 2017?
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The study of Cells is also known as
CMOS is a
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
The pH value increase from 7 to 14 represents a
What is the capital of Greece?
Who among the following was NOT one of the 'Nine Gems' of Emperor Akbar's court?
Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is