Removal of carbon particles from air involves the principle of
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In the following reaction, fill in the blank.Acid + Base → _______ + Water
The atoms of Germanium, Arsenic, Selenium and Bromine contain ...... shells.
Fe has 26 protons in its nucleus. What are the number of electrons in Fe2+ (II) ion?
_________ gets converted to phosgene, when exposed to sunlight.
Turquoise is an ore/mineral of
What is the name of the acid in grapes?
Who was the first man to go to space?
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