Advertisements
Advertisements
प्रश्न
Identify the following:
The element having electronic configuration 2, 8, 6.
Advertisements
उत्तर
Sulphur
Explanation:
The atomic number of S is 16. The electronic arrangements are 2, 8, 6.
APPEARS IN
संबंधित प्रश्न
Give reason for the following:
Red brown vapours are produced when concentrated sulphuric acid is added to hydrogen bromide.
Write a balanced chemical equation for each of the following reactions :
Action of dilute sulphuric acid on zinc sulphide.
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
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).
Sulphuric acid is manufactured by the contact process.
Name the catalyst used.
Sulphuric acid is manufactured by the contact process.
Why H2SO4 is not obtained by directly reacting SO3 with water?
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the carbon.
What property of conc. H2SO4 is made use of in the following case? Give an equation for the reaction in this case:
It’s reaction with ethanol.
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Carbonate/hydrogen carbonate + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
