Other strong acids that have been considered for slurry acidification have proven to be problematic: hydrochloric acid is very corrosive to all materials, and using nitric acid or phosphoric acid would be counterproductive from an environmental perspective.
Why H2SO4 is used for acidification of KMNo4 solution and not HCl or HNO3?
HNO3 is also a powerful oxidizing agent along with KMnO4 so it also plays its role in oxidation which causes a decline in the value of KMNo4 used. As dilute sulfuric acid is ideal for redox titration because it is neither an oxidizing agent and nor a reducing agent.
Which of the following is hydrochloric acid not used for?
HCl is not used as a reactant in the laboratory preparation of nitric acid. It is due to the following reasons: 1. HCl is a volatile acid.HNO3 if formed will oxidise HCl to Cl .
Why is hydrochloric acid used instead of sulfuric acid?
HCl acid is a mild reducing agent. It undergoes redox reactions with strong oxidising agents like MnO2 and KnMO4, getting itself oxidised to chlorine gas. Sulfuric acid is a strong oxidising agent in the concentrated form at higher temperatures, though dil. H2SO4 is non-oxidising.
Why is H2SO4 used to acidify water?
An addition of acid like sulphuric acid makes it an electrolyte. In the presence of $$H^+$$ and ions $$SO^{ -2}_4$$, water becomes capable of dissociation. Sulphuric acid does not take part in the reaction but promotes the reaction or increases the rate of the reaction.
Why HCl is not used in titration of KMnO4?
The acid used in this titration is dilute sulphuric acid. Nitric acid is not used as it is itself an oxidising agent and hydrochloric acid is usually avoided because it reacts with KMnO4 according to the equation given below to produce chlorine and chlorine which is also an oxidising agent in the aqueous solution.
Why HCl is not used in electrolysis of water?
Because HCl is a concentrated acid and if we try to use it for acidifying water and put some of it in water, then it will burn us as steams will be released suddenly which will not give us a chance for escaping them. Thus, it is advised not to use Hcl for this pupose.
What is hydrochloric acid used for?
Hydrochloric acid is used in the production of batteries, photoflash bulbs and fireworks. It is also used in leather processing, building and construction, oil well acidizing and producing gelatin products.
Is hydrochloric acid reactive?
Hydrochloric acid and hydrogen chloride react violently with many metals, with the generation of highly flammable hydrogen gas, which may explode. Reaction with oxidizers such as permanganates, chlorates, chlorites, and hypochlorites may produce chlorine or bromine gas.
What does hydrochloric acid do in the stomach?
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Which is worse hydrochloric acid or sulfuric acid?
Hydrochloric acid is a stronger acid than sulphuric acid since the Ka value (acid ionisation constant) of hydrochloric acid is 1.3 x 106 and that of sulphuric acid is 1 x 103. Therefore, hydrochloric acid is more dangerous than sulphuric acid.
Is hydrochloric acid more reactive than sulfuric acid?
Practically speaking, neither is “stronger” or “weaker”, rather it depends on what the acid is reacting with. Sulfuric reacts more “strongly” with some things (like cellulose) than hydrochloric and hydrochloric reacts more strongly than sulfuric in other cases.
Why HCl is used as reducing agent?
HCl is an oxidizing compound, because 2H+ + 2e- –> H2 ( St. E.P. = 0.00 V) and Chloride ions are a very weak reducing agent (2Cl- –> Cl2 + 2e- at St.
Why HCl or HNO3 Cannot be used instead of H2SO4 in electrolysis of water?
HCl and HNO3 are not used in the titration of Mohr’s salt in place of sulfuric acid because: HCl is a mild reducing agent and it reacts with some of the indicator that is KMnO4 solution so the final value of the indicator used come to be more than the actual value disturbing the experiment.
Why HCl and HNO3 is not used in electrolysis of water?
This is because nitric acid is a strong oxidising agent, and oxidises hydrogen gas to convert it into the water.
Why is only sulphuric acid used for electrolysis of water?
The mixture of sulphuric acid and water will help to introduce the ions and the ions will increase the conductance of the water and it makes reaction very faster. But it does not influence the chemical composition of the product and the reactant. It only increases the speed of the reaction.
Why HCl is not an oxidizing agent?
because in HCl the oxidation number of chlorine is -1. chlorine accept one electron and form Cl- now electron configuration become 2,8,8 and have no accommodation to accept further new electron,that’s why Cl- never act as oxidising agent.
Why is HCl Cannot be used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium?
Why is HCl not used to make the medium acidic in oxidation reaction of KMnO4 in acidic medium?OKMnO4 is a weaker oxidising agent than HCl. KMnO4 acts as a reducing agent in the presence of HCI.
What happens when potassium permanganate react with hydrochloric acid?
The potassium permanganate and hydrochloric acid will result in chlorine gas being evolved. Fortunately there will only be a small amount of chlorine released as the beakers were small and so would not contain a large volume of the substances.
What happens when HCl is Electrolysed?
When concentrated hydrochloric acid is electrolysed, gases P and Q are formed.
How does hydrochloric acid react with water?
Hydrochloric acid, a strong acid, ionizes completely in water to form the hydronium and chlorine (Cl−) ions in a product-favoured reaction.
Contents