General Science Knowledge Challenge

In which of the following activities silicon carbide is used?

The average salinity of seawater is

When an iron nail gets rusted, iron oxide is formed

Galvanised iron sheets have a coating of

Among the various allotrope of carbon

The group of metals Fe, Co, Ni may best called as:

Heavy water is

The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:

The element common to all acids is

Non stick cooking utensils are coated with