The question asks for the common name of Zinc sulfate heptahydrate, chemically represented as $ZnSO4.7H2O$.
Zinc sulfate heptahydrate ($ZnSO4.7H2O$) is historically and commonly known as white vitriol.
It is important to distinguish this from other similar chemical names:
Therefore, the correct common name for $ZnSO4.7H2O$ is white vitriol.
Browning of the chopped apple can be minimized by :
Among the following, which is not the correct method for keeping the curd?
Which one of the following metals is most commonly used for making filament of incandescent electric bulbs?
Which one of the following is not a form of condensation?
Which one of the following alloys contains a non-metal as one of its constituent?