MCQ
Non-axial $d-$ orbital is used in hybridisation of
- A$SF_6$
- B$PCl_5$
- ✓$XeF_5^-$
- D$XeF_5^+$
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Reason : It is the mechanism and not the balanced chemical equation for the overall change that governs the reaction rate.
$A$. The chromate ion is square planar.
$B$. Dichromates are generally prepared from chromates.
$C$. The green manganate ion is diamagnetic.
$D$. Dark green coloured $\mathrm{K}_2 \mathrm{MnO}_4$ disproportionates in a neutral or acidic medium to give permanganate.
$E$. With increasing oxidation number of transition metal, ionic character of the oxides decreases.
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