Percentage Yield

Which of the following species is expected to yield maximum percentage of meta substitution product.

Methylation of 10g of benzene gives 9.2g of toulene, the % yield is:

Stoichiometry||Balancing||Numericals||% yield

H_(2)SO_(4) can be prepared in following two step process : [% yield of each step is indicated] (P) S(g) + O_(2)(g) overset(50% yield)to SO_(2)(g) (Q) NO_(2)(g) + SO_(2)(g) + H_(2)O(l) overset(80% yield)to H_(2)SO_(4)(aq) + NO(g) What mass of sulphur is required to prepare 1960 gm H_(2)SO_(4) ?

For a sequential reaction : A rightarrow B + C 2B rightarrow C + 2D If % yeild of (i) and (ii) reactions are 90% and 80% respectively, then the overall % yield is expected to be:

H_(2)O_(2)+2KIoverset(40% "yield")rarrI_(2)+2KOH H_(2)O_(2)+2KMnO_(4)+3H_(2)SO_(4)overset(50% "yield")rarr K_(2)SO_(4)+2MnSO_(4)+3O_(2)+4H_(2)O 150mL of H_(2)O_(2) sample was divided into two parts. First part was treated with KI and formed KOH required 200 mL of M//2H_(2)SO_(4) for neutralisation. Other part was treated with KMnO_(4) yielding 6.74 litre of O_(2) at 1 atm. and 273 K. Using % yield indicated find volume strength of H_(2)O_(2) sample used.

Case 5 Sequential Reaction,Solved Numerical Questions with % Yield