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प्रश्न
Which of the following oxides is acidic in nature?
विकल्प
B2O3
Al2O3
Ga2O3
In2O3
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उत्तर
B2O3
Explanation:
B2O3 is acidic in nature. It reacts with basic oxides to form metal borates. Acidic nature decreases on moving down the group.
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संबंधित प्रश्न
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(i) The two birdged hydrogen atoms and the two boron atoms lie in one plane;
(ii) Out of six B – H bonds two bonds can be described in terms of 3 centre 2-electron bonds.
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AlCl3
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\[\ce{X ->[Δ][370 K] HBO2 ->[Δ][> 370 K] Z}\]
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\[\ce{Z + 3 LiAlH4 -> X + 3LiF + 3AlF_3}\]
\[\ce{X + 6H2 -> Y + 6H2}\]
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| Column I | Column II |
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| (ii) Aluminium in [Al(H2O)6]3+ | (b) sp3 |
| (iii) Boron in B2H6 | (c) sp3d2 |
| (iv) Carbon in Buckminsterfullerene | |
| (v) Silicon in \[\ce{SiO^{4-}4}\] | |
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