Tag: biological oxidation
Questions Related to biological oxidation
What is the oxidation state of P in $Ba(H _2PO _2) _2$?
Oxidation number of $N$ in $HN _3$ ( hydrazoic acid) is:
Sulphur dioxide bleaches colouring matter by ___________.
When a piece of magnesium ribbon is placed in a beaker of copper sulfate solution, which one of the following is most likely to happen?
In the electrochemical series, metals are arranged in order of their tendency to :
Which one of the following substances is a good oxidising agent?
What electrolyte is used to electroplate silver onto a spoon?
Oxalic acid dihydrate, $H _{2}C _{2}O _{4}\cdot 2H _{2}O(s)$ is often used as a primary reagent to standardise sodium hydroxide solution. Which of these facts are reasons to choose this substance as a primary standard?
I. It is diprotic.
II. It is a stable compound that can be weighed directly in air.
III. It is available in pure form.
For the redox reaction:
$Zn+N{ O }^- _3\rightarrow Zn^{2+}+NH^+ _4$
The mass of $H _{2}O _{2}$ that is completely oxidised by $30.2\ g$ of $KMnO _{4}$ (molar mass= $158\ g mol^{-1}$) in acidic medium is