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Why should only freshly prepared solution of ferrous sulphate solution be used?
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∙ 11y ago
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Wiki User
∙ 11y ago
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Why FeSO4 solution is freshly prepared?
Solid FeSO4 easily absorb water.
How would you stir a solution freshly prepared in a volumetric flask?
You swirl the liquids in volumetric flasks to mix them.
Why do you need freshly prepared starch solution for iodometric titration?
because,starch undergoes a photochemical reaction. So, with the passage of time it can under go to the photochemical reaction and starch wouldnot be starch but it might have changed in anyother product. so...we should use freshly prepared starch.
Why freshly prepared lime water used in experiments to test evolution of CO2?
Freshly prepared lime water is used in the evperiment to test the presence of CO2 in water because lime water turns milky when CO2 is present in water.
How do you overcome the disadvantages of starch indicator?
All the alpha amylase molecules should rupture . Boil water and then add to the boiling water required starch. Make sure that the starch is alpha and not beta amylase. Use freshly prepared starch solution for iodometric titrations. --unnikrishnan
What colored coating is formed on adding zinc granules to freshly prepared ferrous sulphate solution?
A grayish coating is formed.
What happens when freshly prepared solution of ferrous sulphate followed by conc.H2SO4 is added to nitric acid?
You can obtain the ferric sulphate - Fe2(SO4)3; because the ferrous sulphate react as a reducing agent.
Why you use freshly prepared ferrous sulphate solution in detection of nitrogen?
Because in FeSO4, iron present in +2 oxidation state but the stable oxidation state is +3. The Fe(II) get oxidized into Fe(III) in ferrous sulfate solution that's why preparation of solution must necessary.
Why do you need to use a freshly prepared ironII sulphate in our lab experiment?
Ferrous or iron(II) compounds can easily be oxidised to ferric or iron(III) compounds, when exposed to air. So iron(II) sulphate which is stored for some time will have iron(III) sulphate present.
Why is it important that fehlings solution be freshly prepared?
Fehling's solution must be freshly prepared because there is a tendency for it to oxidize if not used right away
Why FeSO4 solution is freshly prepared?
Solid FeSO4 easily absorb water.
Why sodium thiosulphate solution is prepared in freshly boiled and cooled water?
why sodium thiosulfate to be prepared in hot water only
How would you stir a solution freshly prepared in a volumetric flask?
You swirl the liquids in volumetric flasks to mix them.
Why do you need freshly prepared starch solution for iodometric titration?
because,starch undergoes a photochemical reaction. So, with the passage of time it can under go to the photochemical reaction and starch wouldnot be starch but it might have changed in anyother product. so...we should use freshly prepared starch.
Why should benzidine reagent be freshly prepared?
Benzidine reagent is used to test blood in urine. It needs to be freshly prepared in order to obtain best results, otherwise, possible contamination may occur.
Is freshly grapefruit juice a solution or a mechanical mixture?
no
Why freshly prepared 'KOH' solution is taken in a watch-glass and kept in the bell jar during the experiment to show that carbon-dioxide is essential for photosynthesis?
It is because 'KOH' solution helps to absorb all the carbon dioxide present in the bell jar.
