0.2 Of Sample H2O2 reduced 20 Ml Of 0.1 M KMnO4 solution In Acidic Medium. What Is The Percentage Purity Of H2O2?

Why Kaysons ?

Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

Live Doubt Clearing Session

Ask your doubts live everyday Join our live doubt clearing session conducted by our experts.

National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

SPEAK TO COUNSELLOR ? CLICK HERE

Download JEE Question paper & Solution Download JEE Important questions Download Complete syllabus of Maths, Physics, Chemistry

Question

0.2 of sample H₂O₂ reduced 20 ml of 0.1 M KMnO₄ solution in acidic medium. What is the percentage purity of H₂O₂?

medium

Solution

Correct option is

No. of moles of KMnO₄ present in 20 ml of 0.1 M KMnO₄ solution

The balanced equation for the redox reaction is:

From the equation,

2 moles of KMnO₄ ≡ 5 moles of H₂O₂

Mol. Wt. of H₂O₂ = 34

∴ Amount of H₂O₂ actually present = 34 × 5 × 10^–3 = 0.17 g

Download JEE Question paper & Solution Download JEE Important questions Download Complete syllabus of Maths, Physics, Chemistry

SIMILAR QUESTIONS

In which of the following reaction, oxidation number of N remains unchanged?

easy View solution

KMnO₄ acts as a strong oxidizing agent in acidic medium. The reaction that occurs is

What will be the effect on the electrode potential of a half-cell represented as if the concentration of H⁺ ion is doubled in solution?

easy View solution

In which of the following oxidation state of phosphours is + 3?

easy View solution

Determine the volume of M/8 KmnO₄ solution required to react completely with 25.0 cm³ of M/4 FeSO₄ solution is acidic medium.

easy View solution

Calculate the concentration of hypo (Na₂S₂O₃.5H₂O) solution in g dm^–3 if 10.0 of this solution decolourised 15 mL of M/40 iodine solution.

medium View solution

0.5 g of an impure sample of oxalate was dissolved in water and the solution made to 100 ml. On titration 10 ml of this solution required 15 ml of N/20 KMnO₄ solution. Calculate the percentage of pure oxalate in the sample.

medium View solution

Predict whether zinc and silver react with 1 M sulphuric acid to give out hydrogen or not. Give that the standard potentials of zinc and silver are – 0.76 volt and +0.80 volt respectively.

diffcult View solution

Can a solution of 1 M copper sulphate be stored in a vessel made of nickel metal? Given that

or Is it possible to store copper soulphate solution in a nickel vessel?

diffcult View solution

16.6 g of pure potassium iodide was dissolved in water and the solution was made up to one litre. V cm³ of this solution was acidified with 20 cm³of 2 M HCl. The resulting solution required 10 cm³ of decinormal KIO₃for complete oxidation of I^– ions to ICl. Find out the value of V.

easy View solution

Q10

Both (aq) can be used to titrate Fe²⁺ (aq). If in a given titratoion, 24.50 cm³ of 0.1 M were used, then what volume of 0.1 M solution would have been used for the same titration?