Atomic mass of Nitrogen is 14 and that of Hydrogen is 1. What will be the molecular mass of Ammonia?
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How are elements arranged in the Modern Periodic Table?
Which type of epithelial tissue forms the lining of kidney tubules and ducts of salivary glands, where it provides mechanical support?
When the productive capacity of the economic system of state is inadequate to create sufficient number of jobs, it is called _______
Charles Darwin, the famous evolutionist, proposed his theory in which one of his books ?
Shahjahan was the _____Mughal ruler.
The term polyarchy was used by Robert Dahl to describe a form of government in which?
Pfizer Inc is a pharmaceutical company of which country?
The Pfizer Inc of the United States of America (USA) and its partner BioNTech of Germany completed the phase 3 trial of their COVID-19 vaccine candidate, BNT162b2 against SARS-CoV-2 with 95% effective success rate.