Oxygen was discovered by
Cation formation is an____process?
Cation formation is an____?
Glass is made of the mixture of_____?
Glass is made of the mixture of?
The isotope of uranium capable of sustaining chain reactions is
_____ is used as filler in rubber tyres.
Production of chlorofluorocarbons (CFC) gas which is banned in India, was used in which of the following domestic products?
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?
Mason was discovered by
The transition temperature between two allotropic forms of sulphur is