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The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
Question
Which is a stronger reducing agent, $\mathrm{SbH}_3$ or $\mathrm{BiH}_3$, and why?
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Answer

$\mathrm{BiH}_3$, because the stability of hydrides decreases on moving from $\mathrm{SbH}_3$ to $\mathrm{BiH}_3$.

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