MCQ
The compound which gives off oxygen on moderate heating is
- ACupric oxide
- ✓Mercuric oxide
- CZinc oxide
- DAluminium oxide
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$XeF _4, SF _4, SiF _4 . BF _4^{--}, BrF _4^{-},\left[ Cu \left( NH _3\right)_4\right]^{2+},\left[ FeCl _4\right]^{2-},\left[ CoCl _4\right]^{2-}$ and $\left[ PtCl _4\right]^{2-}$.
Defining shape on the basis of the location of $X$ and $Z$ atoms, the total number of species having a square planar shape is
$(I)\, SF_4$ $(II)\, OSF_4$ $(III)\, H_2CSF_4$