1. | Both the Boron atoms are sp2 hybridised. |
2. | There are two 3-centre-2-electron bonds. |
3. | The four terminal B-H bonds are two centre two-electron bonds. |
4. | The four terminal Hydrogen atoms and the two Boron atoms lie in one plane. |
List-I (Compounds) |
List-II (Molecular formula) |
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(a) | Borax | (i) | NaBO2+B2O3 |
(b) | Kernite | (ii) | Na2B4O7.4H2O |
(c) | Orthoboric acid | (iii) | H3BO3 |
(d) | Borax bead | (iv) | Na2B4O7.10H2O |
(a) | (b) | (c) | (d) | |
1. | (iv) | (ii) | (iii) | (i) |
2. | (ii) | (iv) | (iii) | (i) |
3. | (iii) | (i) | (iv) | (ii) |
4. | (i) | (iii) | (iv) | (ii) |
1. | H3BO3 | 2. | B2O3 |
3. | Na2B2O5 | 4. | NaB3O5 |