Which of the following is fat soluble vitamins

$ + \frac{1}{2}\frac{{d\left[ C \right]}}{{dt}} = - \frac{1}{3}\frac{{d\left[ D \right]}}{{dt}} = + \frac{1}{4}\frac{{d\left[ A \right]}}{{dt}} = \frac{{ - d\left[ B \right]}}{{dt}}$

the reaction is

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In the reaction sequence :

$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,O} \\
{\,\,\,\,\,\,\,\,||} \\
{C{H_3} - C - H}
\end{array}$ $\mathop {\xrightarrow{{HCN}}}\limits_{\mathop O\limits^\Theta H} (A)\mathop {\xrightarrow{{{H_2}O/{H^ \oplus }}}}\limits_\Delta $ Product

Product will be :

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For electroplating a spoon, it is placed in the voltameter at

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A first order reaction was started with a decimolar solution of the reactant, 8 minutes and 20 seconds later its concentration was found to be $M/100$. So the rate of the reaction is

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The correct name of $[Pt{(N{H_3})_4}C{l_2}]\,\,[PtC{l_4}]$ is

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A mixture has $18\,g$ water and $414\,g$ ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)

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When a rod of metal $A$ is dipped in an aqueous solution of metal $B$ (concentration of ${B^{2 + }}$ ion being $1\,M$ ) at ${25\,^o}C$, the standard electrode potentials are ${A^{2 + }}/A$ $ = -0.76 $ volts, ${B^{2 + }}$ $/B = + 0.34$ volts

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