2. Sodium thiosulphate solution turn cloudy when it reacts with nitric acid: a. Due to the formation NaNO3 b. Due to the

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2 Sodium Thiosulphate Solution Turn Cloudy When It Reacts With Nitric Acid A Due To The Formation Nano3 B Due To The 1 (43.14 KiB) Viewed 140 times

2. Sodium thiosulphate solution turn cloudy when it reacts with nitric acid: a. Due to the formation NaNO3 b. Due to the evolution of SO2 gas c. Due to the formation of S. d. None of the above. 3. Oxalic acid solution is heated before titration with KMnO, solution in order to a. Speed up reaction b. Slow down reaction c. Dissolve formed ions d. Help produce a color at the endpoint. 1. The oxidation state for carbon element in CO2 is: a. +4 b. +5 c. +1 d. +3 2. From the graph of the concentration of sodium thiosulfate against rate of reaction: a. Rate of reaction and concentration of sodium thiosulfate are inversely proportional to each other. b. Rate =k [S_O,21 c. Rate =k d. No change on rate as concentration increases. 3. Acids (H') reacts with metal hydroxides (OH) to from a. Salt and hydrogen gas b. Salt and water c. Salt and hydrogen oxides d. Salt and alkali