The Biuret test is used to detect the presence of which substance?
Sphalerite is an ore/mineral of -
What is the chemical formula of Urea, the best nitrogenous fertilizer?
Which element is used in pencil leads?
CALCOCITE is an ore of :
The mine explosions are mostly caused by the combination of air with which gas?
Which mineral is the ore Of aluminium ?
The Polymer used for Electrical insulation buttons is
What happens when camphor is heated? Â
Sodium Chloride is an example of