occurence of oxygen and sulphur

Oxygen - Oxygen is very essential for the existence of human life on Earth. It is the most abundant element on the surface of the Earth. In a free state, it is present in the Earth's atmosphere to an extent of about 21% by volume, (23.15% by mass) In the combined form, it consti..

It is absorbed from the soil in the form of sulphate (SO 4 2 - ) though small quantities of sulphur dioxide can be got from the air by foliar absorpti..

Sulphur is an important component of most proteins, few vitamins and enzymes. Though sulphur occurs in gaseous form, as hydrogen sulphide (H 2 S) and sulphur dioxide (SO 2 ), the residence time of sulphur in atmosphere is very sm..

Sulphuric Acid - Sulphuric acid, H 2 SO 4 is a colorless, odorless, extremely corrosive, oily liquid. It was initially called oil of vitriol. It occurs in the free state and combined state. It is also formed near sulphide bed..

Allotropy in Sulphur - A chemical element is said to exhibit allotropy when it occurs in two or more free forms in the same physical state; the forms are called allotropes. Allotropes generally differ in physical properties such as color and hardness; they may also differ in mol..

When heated in air or oxygen, sulphur first melts and then burns with a blue flame to form sulphur dioxide and some traces of sulphur trioxid..

Position of Oxygen and Sulphur in the Periodic Table - 1. Oxygen is the first member of the group VIA and sulphur is the second member of the group VI..

Chemical Properties of Sulphur - With Air or Oxygen - When heated in air or oxygen, sulphur first melts and then burns with a blue flame to form sulphur dioxide and some traces of sulphur trioxid..

When heated in air or oxygen, sulphur first melts and then burns with a blue flame to form sulphur dioxide and some traces of sulphur trioxid..