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प्रश्न
Complete the following chemical equations:
\[\ce{Z + 3 LiAlH4 -> X + 3LiF + 3AlF_3}\]
\[\ce{X + 6H2 -> Y + 6H2}\]
\[\ce{3X + 3O2 ->[Δ] B2O3 + 3H2O}\]
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उत्तर
\[\ce{\underset{(Z)}{4BF3} + 3LiAlH4 -> \underset{(X)}{2B2H6} + 3LiF + 3AlF3}\]
\[\ce{\underset{(X)}{B2H6} + 6H2O -> \underset{(Y)}{2H3BO3} + 6H2}\]
\[\ce{\underset{(X)}{B2H6} + 3O2 ->[Δ] B2O3 + 3H2O}\]
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संबंधित प्रश्न
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In the structure of diborane ______.
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(i) The two birdged hydrogen atoms and the two boron atoms lie in one plane;
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PbX2 is more stable than PbX4.
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Electron gain enthalpy of chlorine is more negative as compared to fluorine.
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\[\ce{X ->[Δ][370 K] HBO2 ->[Δ][> 370 K] Z}\]
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| Column I | Column II |
| (i) Boron in [B(OH)4]– | (a) sp2 |
| (ii) Aluminium in [Al(H2O)6]3+ | (b) sp3 |
| (iii) Boron in B2H6 | (c) sp3d2 |
| (iv) Carbon in Buckminsterfullerene | |
| (v) Silicon in \[\ce{SiO^{4-}4}\] | |
| (vi) Germanium in [GeCl6]2– |
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Describe the general trends in the following properties of the elements in Groups 13 and 14.
Ionisation enthalpy
Describe the general trends in the following properties of the elements in Groups 13 and 14.
Oxidation states
Describe the general trends in the following properties of the elements in Groups 13 and 14.
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