Fill in the blanks and classy the following reactions into oxidation and reduction:
iv)` Fe^(3+)+…….. rarr Fe^(2+)`

Fill in the blanks and classy the following reactions into oxidation and reduction: ii) Sn^(4+)+………. rarrSn^(2+)

Fill in the blanks and classy the following reactions into oxidation and reduction: iii) Nararr Na^(+)+………

Fill in the blanks and classy the following reactions into oxidation and reduction: i) Mn^(7+)+5e^(-)rarr……….

Justify that the following reaction is a redox reaction: Fe_2O_3(s) + 3COg rarr 2Fe(s) + 3CO_2(g) ?

Which of the following redox reaction is oxidation and which is reduction? i) 'Zn = Zn^(2+) + 2 e^-' ii) 'Cl_2 + 2 e^- = 2 Cl^-' ii) 'Fe = Fe^(2+) + 2 e^-' iv) 'Sn^4+ + 2 e^- = Sn^(2+)'

Justify the following reaction is redox reaction Fe_2O_3 (s) + 3CO (g) to 2Fe (s) + 3CO_2 (g)

a) Identify redox reaction from the following reactions. i) Evaporation of water. ii) Conversion of oxygen to ozone in the upper atmosphere. iii) Formation of nitric oxide from nitrogen and oxygen during lightning. iv) Reaction of 'NaOH' with 'H_2 SO_4' b) Balance the following equation by oxidation number method. 'Fe^(2+)+Cr_2 O_7^(2-)+H^+ rarr F e^(3+)+Cr^(3+)+H_2 O'