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प्रश्न
Complete the following reaction.
\[\ce{H2B4O7 ->[Red hot]}\]
एक पंक्ति में उत्तर
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उत्तर
\[\ce{H2B4O7 ->[Red hot] \underset{\text{(Boric anhydride)}}{2B2O3} + H2O}\]
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Group 13 (Boron Group) Elements
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संबंधित प्रश्न
An aqueous solution of borax is ____________.
Boric acid is an acid because its molecule ____________.
Which of the following metals has the largest abundance in the earth’s crust?
Match items in Column – I with the items of Column – II and assign the correct code.
| Column – I | Column – II |
| A. Borazole | 1. B(OH)3 |
| B. Boric acid | 2. B3N3H6 |
| C. Quartz | 3. Na2[B4O5(OH)4]8H2O |
| D. Borax | 4. SiO2 |
Write a short note on hydroboration.
Complete the following reaction.
\[\ce{B(OH)3 + NH3 ->}\]
Complete the following reaction.
\[\ce{Na2B4O7 + H2SO4 + H2O ->}\]
Complete the following reaction.
\[\ce{B2H6 +CH3OH ->}\]
Complete the following reaction.
\[\ce{BF3 + 9H2O ->}\]
Complete the following reaction.
\[\ce{B + NaOH ->}\]
