Advertisements
Advertisements
Question
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
Advertisements
Solution 1
Sulphuric acid, when treated with sulphites gives sulphate salts, water and sulphur dioxide gas. Sulphur dioxide turns potassium dichromate solution green. Thus, the negative ion is Sulphite ion.
Solution 2
Compound D is Na2SO3 and anion is \[\ce{[SO^{2-}3]}\].
RELATED QUESTIONS
Give two balanced reactions of the type to show the following property of sulphuric acid:
Non-volatile nature
Name the products formed when hot and concentrated sulphuric acid reacts with Carbon.
Name the following:
Products obtained by treating ferrous sulphide with dilute sulphuric acid.
How are the following conversion brought about? Give equation and condition:
Oxalic acid to carbon monoxide.
Name the catalyst used in the process.
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with sodium sulphite.
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with iron (II) sulphide.
The property exhibited by concentrated sulphuric acid when it is used to prepare hydrogen chloride gas from potassium chloride is ______.
