Which of the following is Potash Alum?
- A$K_{2}SO_{4} \cdot Al_{2}(SO_{4})_{3} \cdot 24H_{2}O$
- B$K_{2}SO_{4} \cdot Cr_{2}(SO_{4})_{3} \cdot 24H_{2}O$
- C$K_{2}SO_{4} \cdot Fe_{2}(SO_{4})_{3} \cdot 24H_{2}O$
- D$(NH_{4})_{2}SO_{4} \cdot FeSO_{4} \cdot 6H_{2}O$
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Which one of the following concerns Photophosphorylation?
Which two orbitals are located along the axis and not between the axis?
The final product $(III)$ obtained in the reaction sequence:
$CH_3CH_2COOH$ $\xrightarrow{PCl_3} I$ $\xrightarrow[AlCl_3]{C_6H_6} II$ $\xrightarrow[base, heat]{NH_2NH_2} III$ is
$CH_3CH_2COOH$ $\xrightarrow{PCl_3} I$ $\xrightarrow[AlCl_3]{C_6H_6} II$ $\xrightarrow[base, heat]{NH_2NH_2} III$ is
$A$ centigrade and a Fahrenheit thermometer are dipped in boiling water. The temperature is lowered until the Fahrenheit thermometer registers $140^{\circ}F$. What is the fall in temperature in $^{\circ}C$ as registered by the centigrade thermometer?
$\sqrt[3]{61 - 46\sqrt{5}} = $
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