Non stick cooking utensils are coated with
A). Black paint
B). PVC
C). Teflon
D). polystyrene
The element common to all acids is
A). Hydrogen
B). Carbon
C). Sulphur
D). Oxygen
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:
A). Bromine
B). Fluorine
C). Chlorine
D). Sulphur
Heavy water is:
A). Deuterium oxide
B). PH7
C). Rain water
D). Tritium oxide
The group of metals Fe, Co, Ni may best called as:
A). Transition metals
B). Main group metals
C). Alkali metals
D). Rare metals