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The p-Block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe p-Block Elements2 Marks
Question
Complete the following chemical equations:
$\text{Z}+3\text{LiAlH}_4\rightarrow\text{X}+3\text{LiF}+3\text{AlF}_3$
$\text{X}+6\text{H}_2\text{O}\rightarrow\text{Y}+6\text{H}_2$
$3\text{X}+3\text{O}_2\xrightarrow{\triangle}\text{B}_2\text{O}_3+3\text{H}_2\text{O}$
✓

Answer

$4\text{BF}_3+3\text{LiAlH}_4\rightarrow2\text{B}_2\text{H}_6+3\text{LiF}+3\text{A1F}_3$
$\text{B}_2\text{H}_6(\text{g})+6\text{H}_20(1)\rightarrow2\text{B}(\text{OH})_3\text{(aq)}+6\text{H}_2\text{(g)}$
$\text{B}_2\text{H}_6+3\text{O}_2\xrightarrow{\triangle}\text{B}_2\text{O}_3+3\text{H}_2\text{O}$
$\text{Z}=\text{BF}_3,\text{X}=\text{B}_2\text{H}_6\text{ and Y=B(OH)}_3\text{ or H}_3\text{BO}_3$

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