NEET Chemistry Redox Reactions Questions Solved


A solution of Na2S2O3 is standardized iodimetrically against 0.1262 g of Mr%. This process requires 45 mL of the Na2 S2O3 solution. What is the strength of the Na2S2O3?

(1) 0.2M

(2) 0.1 M

(3) 0.05M

(4) 0.1 N

(4) Na2S2+2O3 + KB+ 5rO3 Br- + Na2S4+ 2.5O6

v.f = 1v. = 6

by m.e. of Na2S2O3 = m.e. of KBrO3

molarity of Na2S2O3 = 0.1 M 

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