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प्रश्न
How will you identify?
Sulphur dioxide gas
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उत्तर
It is a colourless gas with a smell of burnt sulphur. It turns moist blue litmus paper red and finally bleaches it.
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संबंधित प्रश्न
Give reasons for the following:
A piece of wood becomes black when concentrated sulphuric acid is poured on it.
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Write a balanced chemical equation for each of the following reactions :
Action of dilute sulphuric acid on sodium hydroxide.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
How will you distinguish between conc. HCl and conc. H2SO4?
Making use only of substances chosen from those given below:
Dilute sulphuric acid
Sodium carbonate
Zinc
Sodium sulphite
Lead
Salcium carbonate
Give the equation for the reaction by which you could obtain:
(i) Hydrogen
(ii) Sulphur dioxide
(iii) Carbon dioxide
(iv) Zinc Carbonate (two steps required).
Which property of sulphuric acid accounts for its use as a dehydrating agent?
Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write one equation. Each illustrates the above-mentioned properties of sulphuric acid.
Arrange the following as per the instruction given in the bracket:
Sulphuric acid, Phosphoric acid, Acetic acid (increasing order of number of replaceable H atoms per molecule).
Identify the following:
The element having electronic configuration 2, 8, 6.
