MCQ
$RNA$ and $DNA$ are chiral molecules, their chirality is due to
- A$L-$sugar component
- BChiral base
- CChiral phosphate units
- ✓$D-$ sugar component
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| Element | Electronic configuration |
| $X$ | $1s^2\,2s^2\,2p^2$ |
| $Y$ | $1s^2\,2s^2\,2p^6\,3s^1$ |
| $Z$ | $1s^2\,2s^2\,2p^6\,3s^2\,3p^6\,3d^{10}\,4s^2\,4p^5$ |
Which set of properties match correctly with properties of the hydrides of these elements
| 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 |