The strongest oxidizing agent is 1)HNO3 2)H2SO4 3)H2SO3 4) H2S2O3

Properties of H_(2)SO_(4) are listed below . Choose the property A,B,C or D which is responsible for the reactions (i) to v] . A : Acid B : Dehydrating agent C: Non - volatile acid D : Oxidizing agent (i) C_(12)H_(22)O_(11)+nH_(2)SO_(4)to12C+11H_(2)O+nH_(2)SO_(4) , (ii) S+2H_(2)SO_(4)to3SO_(2)+2H_(2)O , (iii) NaCl+H_(2)SO_(4)toNaHSO_(4)+HCl , (iv) CuO+H_(2)SO_(4)toCuSO_(4)+H_2O , (v) Na_(2)CO_(3)+H_(2)SO_(4)toNa_(2)SO_(4)+H_(2)O+CO_(2) [some properties may be repeated]

Sulphur has highest oxidation state in a. SO_(2) b. H_(2)SO_(4) c. Na_(2)S_(4)O_(6) d. Na_(2)S_(2)O_(3)

State the type of reactions each of the following equations represent and balance the ones that are not balanced. KNO_3 + H_2SO_4 to HNO_3 + KHSO_4

Why is H_2SO_4 not a drying agent for H_2S ?

Some properties of sulphuric acid are listed below . Choose the role played by sulphuric acid as A,B,C or D which is responsible for the reactions I ] to v] . Some role/s may be repeated. A : Dilute acid B : Dehydrating agent C : Non - volatile acid D : Oxidising agent (i) CuSO_(4)*5H_(2)Ooverset(Conc .H_(2)SO_(4))toCuSO_(4)+5H_(2)O (ii) S+2H_(2)SO_(4)[conc.]to3SO_(2)++2H_(2)O (iii) NaNO_(3)+H_(2)SO_(4)[conc.]overset(lt200^(@)C)toNaHSO_(4)+HNO_(3) (iv) Zn+2H_(2)SO_(4)[conc.]toZnSO_(4)+SO_(2)+2H_(2)O

Balance the chemical equations S+HNO_3 to H_2SO_4+ NO_2 + H_2O

Identify: a. The good oxidising agent b. The good reducing agent c. The good dehydrating agent (s) among the following substances: H_(2)SO_(3),HNO_(3),P_(4)O_(10),H_(2)S,H_(2)SO_(4) .

Balance the following equation : HNO_3 + H_2S to NO_2 + H_2O + S .

The total number of diprotic acids among the following is H_(3)PO_(4), H_(2)SO_(4), H_(3)PO_(3) H_(2)CO_(3), H_(2)S_(2)O_(7), H_(3)BO_(3) H_(3)PO_(2), H_(2)CrO_(4), H_(2)SO_(3)

The correct sequence of decreasing number of pi - bonds in the structure of H_2SO_3,H_2SO_4 and H_2S_2O_7 is :