Elements of Group 13, 14 and 15 — Chemistry STD 11 Science — Question
Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryElements of Group 13, 14 and 152 Marks
Question
Explain the reactivity of group $13$ elements towards halogens.
✓
Answer
$i.$ All the elements of group $13$ react directly with halogens to form trihalides $(EX_3).$
$2E_{(S)} + 3X_{2(g)} \rightarrow 2EX_{3(s)} ($where, $E = B, Al, Ga,$ In and $X = F, Cl, Br, I)$
$ii.$ Thallium is an exception as it forms monohalides $\text{(TlX).}$
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