Write the Chemical Formula of Hydrogen Sulphide

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The chemical formula for hydrogen sulfide (H2S) is a simple compound. It consists of two hydrogen atoms and one sulfur atom. It is a colorless gas with a characteristic rotten egg odor and is highly toxic in high concentrations. It is produced by the breakdown of organic matter and is commonly found in nature in volcanic gases and hot springs.

  • In industry, hydrogen sulfide is produced as a by-product of fossil fuels such as oil and natural gas. It is also used in the production of fertilizers, dyes, and other chemical products.
  • Despite its toxic nature, hydrogen sulfide has essential biological roles in the human body.
  • It acts as a signaling molecule in the brain and regulates blood flow and blood pressure.
  • It is also a component of the digestive system and is used by bacteria in the gut to produce energy.

Overall, hydrogen sulfide is a versatile chemical with both beneficial and harmful properties. Understanding its properties and uses is important for both its safe handling in industry and its role in human health and biology.

Hydrogen Sulphide

Hydrogen Sulphide

Interesting Facts on Hydrogen Sulphide

  1. Hydrogen sulfide is a colorless, flammable, and poisonous gas with a characteristic odor of rotten eggs.
  2. It is naturally produced in large quantities in various biological processes such as the decomposition of organic matter and volcanic activity.
  3. It is used in the production of fertilizers, dyes, and other chemicals.
  4. In small concentrations, hydrogen sulfide is perceived as having a pleasing odor, but in higher concentrations, it can lead to respiratory distress and even death.
  5. Some bacteria can use hydrogen sulfide as an energy source, and some animals, such as the naked mole-rat, can tolerate high levels of the gas.

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CBSE CLASS XII Related Questions

  • 1.
    Following reaction takes place in one step:

    \(2A + B \rightarrow 2C\)

    How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?


      • 2.
        The chelating ligand used for the treatment of lead poisoning is :

          • Ethane-1,2-diamine
          • Oxalate ion
          • Dimethylglyoxime
          • EDTA

        • 3.
          Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?


            • 4.

              Explain the Finkelstein reaction.


                • 5.
                  Consider the decomposition of hydrogen peroxide \( (\mathrm{H_2O_2}) \) as per the equation given below : \[ 2\mathrm{H_2O_2} \xrightarrow[\text{Alkaline medium}]{I^-} 2\mathrm{H_2O} + \mathrm{O_2} \] The mechanism for this reaction was found to be : Step I : \( \mathrm{H_2O_2} + I^- \longrightarrow \mathrm{H_2O} + IO^- \) (slow) Step II : \( \mathrm{H_2O_2} + IO^- \longrightarrow \mathrm{H_2O} + I^- + \mathrm{O_2} \) (fast) (a) Write the rate law expression. (b) Determine the order of reaction with respect to \( \mathrm{H_2O_2} \), \( I^- \) and overall order of reaction. (c) What is the molecularity of the reaction in Step II ?


                    • 6.
                      From the given data of \(E^{\circ}\) values, answer the following questions :
                      (I) Why \(E^{\circ}_{M^{2+}/M}\) show irregular trend in the above values ?
                      (II) Why is \(E^{\circ}_{Cu^{2+}/Cu}\) value exceptionally positive ?
                      (III) Why \(E^{\circ}_{Mn^{2+}/Mn}\) value is highly negative ?

                        CBSE CLASS XII Previous Year Papers

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