Definition of probosis
Nuclear sizes are expressed in a unit named?
The working principle of a washing machine is?
Which is the first alloy, a mixture of two metals to be made in the world?
The first scientific definition of a chemical element was made in which book?
How would you know that a chemical is pure or not?
2.76 g of silver carbonate on being strongly heated yields a residue weighing (a) 2.16 g (b) 2.48 g (c) …
Bronze is an alloy of what?
Which is the most widely used metal?
Which drug is present in tobacco?