- AV
- BFe
- CMn
- DCr
Explanation:
| Metal | Maximum Oxidation state |
| V | +3 |
| Cr | +6 |
| Fe | +3 |
| Mn | +7 |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Reason : Size of fluorine is small and its lone pair of electrons interacts with $d-$ orbitals of $Si$ strongly.
$\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_2} - Br}\\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
{{C_2}{H_5}\,\,\,\,\,\,\,\,\,}
\end{array}$
$(a)$ The vapour pressure of water at $280 K$ is $14.2$ $mm Hg$
$(b)$ $R =0.082 L$ atm $K ^{-1} mol ^{-1}$
$ NH_3(g) \rightleftharpoons \frac{1}{2}\,{N_2}\left( g \right) + \frac{3}{2}{H_2}\left( g \right);\,{K_2}$
$\frac{1}{2}\,{N_2}\left( g \right) + \frac{3}{2}{H_2}\left( g \right) \rightleftharpoons NH_3(g); K_3$
$2NH_3(g) \rightleftharpoons N_2(g) + 3H_2(g); K_4$
If $K_1 = K_2^x = K_3^y = K_4^z$ then correct values of $x, y$ and $z$ are respectively
