KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / OXYGEN / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / OXYGEN / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / OXYGEN / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      Oxygen is a colourless, tasteless and odourless gas

·      Oxygen does not burn but helps things to burn

·      Atomic number is 8

·      It is a member of the chalcogen group on the periodic table

·      Oxygen is the third most abundant element in the universe by mass after hydrogen and helium

·      All major classes of structural molecules in living organisms, such as proteins, carbohydrates, and fats, contain oxygen

·      Uses of oxygen include the production of steel, plastics and textiles; rocket propellant; oxygen therapy; and life support in aircraft, submarines, spaceflight and diving

·      Smelting of iron ore into steel consumes 55% of commercially produced oxygen.

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / OXYGEN / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY