Chemistry
Comment, sulphuric acid is referred to as:
(a) King of chemicals
(b) Oil of Vitriol
Answer
(a) Sulphuric acid is referred as the King of Chemicals because there is no other manufactured compound which is used by such a large number of key industries. It has been known for a long time.
(b) Sulphuric acid is referred to as Oil of vitriol because in the later middle ages, it was obtained as an oily viscous liquid by heating crystals of green vitriol.
Related Questions
Sulphuric acid is manufactured by contact process.
(a) Give two balanced equations to obtain SO2 in this process.
(b) Give the conditions for the oxidation of SO2.
(c) Name the catalyst used.
(d) Why H2SO4 is not obtained by directly reacting SO3 with water?
(e) Name the chemical used to dissolve SO3 and also name the product formed. Give all the main reactions of this product.
Why the impurity of arsenic oxide must be removed before passing the mixture of SO2 and air through the catalytic chamber?
(a) Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
(b) In the Contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two steps procedure is used. Write the equations for the two steps involved in D.
(c) What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
(d) Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
The gas evolved when dil. sulphuric acid reacts with iron sulphide.
- Hydrogen sulphide
- Sulphur dioxide
- Sulphur trioxide
- Vapour of sulphuric acid.