MCQ
When a sulphur atom becomes a sulphide ion
- AThere is no change in the composition of atom
- ✓It gains two electrons
- CThe mass number changes
- DNone of these
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Electron geometry $-$ Possible molecular shape from respective electron geometry
$C_{(graphite)} + CO_{2(g)} \rightarrow 2CO _{(g)}$
are $170\, kJ$ and $170\, J K^{-1},$ respectively. This reaction will be spontaneous at ............ $\mathrm{K}$