MCQ
Among the following metals, the most dense is
- ✓osmium
- Bchromium
- Cplatinum
- Dgold
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$X$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^6},\,\,4{s^2}$
and $Y$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^5}$
The compound formed by combination of $X$ and $Y$ is
| List-I (Complexes) | List-II (Types) |
| (a) $\left[ Co \left( NH _3\right)_5 CN \right] Cl _2$ | (i) ionisation isomerism |
| (b) $\left[ Cr \left( NH _3\right)_6\right]\left[ Co ( CN )_6\right]$ | (ii) coordination isomerism |
| (c) $\left[ Co \left( NH _3\right)_5\left( SO _4\right)\right] Br$ | (iii) linkage isomerism |