Chromium trioxide is known as chromic acid.
Nichrome wire is used in electric heaters[Ni, Cr, Fe].
Generally transition metals and their compounds are coloured.
Zeolite is used to remove hardness of water.
In cytochrome iron[Fe] is present.
Selenium metal is used in photo electric cell.
Gallium metal is liquid at room temperature.
Palladium metal is used in aeroplane.
Radium extracted from pitch blende.
World famous Eiffel Tower has steel and cement base.
No comments:
Post a Comment