Question

Number of moles of K­Cr2O7 reduced by 1 mole of Sn2+ is

Solution

Correct option is

 

   

                               

      

From the above Eqn., it is evident that 3 moles of Sn2+ reduce 1 mole of 

SIMILAR QUESTIONS

Q1

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.

Q2

 

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?

Q3

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

Q4

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.

Q5

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?

Q6

1.1 g of a sample of copper ore is dissolved and Cu2+ (aq) is treated with KI. The iodine thus liberated required 12.12 cm3 of 0.1 M Na2S2O3solution for titration. What is the percentage of copper in the ore?

Q7

Oxidation number of sodium in sodium amalgam is

Q8

 

In the given reaction,

   

X, Y, Z are

Q9

 

Which will be the proper alternative in place of A in the following equation.

Q10

 

The values of x and y in the following redox reaction,