MCQ
Strong reducing behaviour of $H_3PO_2$ is due to
- Alow co-ordination number of phosphorus
- Bhigh oxidation state of phosphorus
- Cpresence of two $-OH$ groups and one $P-H$ bond
- ✓presence of one $-OH$ group and two $P-H$ bonds.
All oxy-acid of phosphorus which contain $\mathrm{P}-\mathrm{H}$ bond act as reductant.
presence of one -OH group and two $P-H$ bonds
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$(I)$ Acetaldehyde
$(II)$ Acetone
$(III)$ Di-tert-butylketone
$(IV)$ Methyl-tert-butyl ketone
| column $I$ Metals | column $II$ Coordination compounds |
| $a.$ $Co$ | $i.$ Wilkinson catalyst |
| $b.$ $Zn$ | $ii.$ Chlorophyll |
| $c.$ $Rh$ | $iii.$ Vitamin $B_{12}$ |
| $d.$ $Mg$ | $iv.$ Carbonic anhydrase |