MCQ
The $IUPAC$ name of $[Cr(en)_3]Cl_3$ is
- Atriethylene diaminechromium $(III)$ chloride
- Btris(ethylenediammine)chromium $(III)$ chloride
- ✓tris(ethylenediamine)chromium $(III)$ chloride
- Dtris(ethylene diamine)chomium $(III)$ chlorido
$x+4(-1)=-2$
$x=+2$
$\Rightarrow 12-2+6 \times 2$
$\Rightarrow 10+12=22(\mathrm{EAN})$
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$(K_f =-1.86\,^o\,C/m)$
| List-$I$ | List-$II$ |
| $\mathrm{P}_2 \mathrm{O}_3+3 \mathrm{H}_2 \mathrm{O} \rightarrow$ | $\mathrm{P}(\mathrm{O})\left(\mathrm{OCH}_3\right) \mathrm{Cl}_2$ |
| $\mathrm{P}_4+3 \mathrm{NaOH}+3 \mathrm{H}_2 \mathrm{O} \rightarrow$ | $\mathrm{H}_3 \mathrm{PO}_3$ |
| $\mathrm{PCl}_5+\mathrm{CH}_3 \mathrm{COOH} \rightarrow$ | $\mathrm{PH}_3$ |
| $\mathrm{H}_3 \mathrm{PO}_2+2 \mathrm{H}_2 \mathrm{O}+4 \mathrm{AgNO}_3 \rightarrow$ | $\mathrm{H}_3 \mathrm{PO}_4$ |

$CH_3-CH_2-CHO \, + $ (image) $\xrightarrow[{0 - 5{}^ \circ C}]{{O\mathop H\limits^ \ominus }} \, ?$