What are the densities of Al, Ge and Si ?
What is the type of bond in neoprene?
The mass of mole substance in gram is called?
When 2 gm magnesium reasts with excess of HCl and H2 gas is produced then the volume of H2 gas produced is ____ × 10–2 liter at STP. (Nearest Integer)
Consider the following molecules : Br3O8, F2O, H2S4O6, H2S5O6, and C3O2. Count the number of atoms existing in their zero oxidation state in each molecule. Their sum is _______.
The electrons in the atom of an element which determine its chemical and electrical properties are called?
Dehydrogenation, dehydrohalogenation
Which catalyst is used in hydrogenation of oils and fats?
Magnetic moment; of TI, V, Cr, Mn.
Conjugate base of H3P04
Frenkel defect is also known as?