What is the net charge on Calcium fluoride?
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Pyrolusite is an ore/mineral of ___________.
Which of the following represents an ion?
Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.
Gravitational force is maximum at which of the following place?
Yeast is a ______________
Which type of pathogen causes the water-borne disease Typhoid fever?
What will you call a system of taxation under which the poorer sections are taxed at higher rates than the richer sections?