Tag: biochemical techniques
Questions Related to biochemical techniques
Which is/are the correct method for separating a mixture of benzoic acid, p-methylaniline & phenol.
Assertion:
Which of the following is not a product of tar distillation?
Styrene can be purified by:
The standard reduction potentials of $Pt|Cr {2}O _{7}^{2-}, Cr^{+3}; Pt|MnO _{4}^{-}, Mn^{+2}; Pt|Ce^{+4}, Ce^{+3}$ in the presence of acid are 1.33 V, 1.51 V and 1.61 V, respectively, at $25^{\circ}C$. The decreasing order of oxidizing power is _________________.
Which of the following compounds can be purified by vacuum distillaiton?
p-nitrophenol and o-nitrophenol are separated by?
$ H _{2}O _{2}$ can be prepared by successive reactions:
$ 2NH _{4}HSO _{4}\rightarrow H _{2}+(NH _{4})^{2}S _{2}O _{8}$
$ (NH _{4}) _{2}S _{2}O _{8}+2H _{2}O \rightarrow 2NH _{4}HSO _{4}+ H _{2}O _{2}$
The first reaction is an electrolytic reaction and second is steam distillation. What amount of current would have to be used in first reaction to produce enough intermediate to yield 102 g pure $ H _{2}O _{2}$ per hour. Assume current efficiency 50 %.
Which of the following compounds can be purified by steam distillation?