How is boron obtained from borax ? Give the chemical reactions involved. Draw the structure of `B_(2)H_(6)` and give its reaction with `HCl`.

Explanation

To obtain boron from borax, we can follow a series of chemical reactions. Here’s a step-by-step breakdown of the process along with the relevant chemical equations.

### Step 1: Reaction of Borax with Hydrochloric Acid
Borax, which has the chemical formula Na₂B₄O₇·10H₂O, reacts with hydrochloric acid (HCl) to form boric acid (H₃BO₃) and sodium chloride (NaCl).

**Chemical Reaction:**
\[ \text{Na}_2\text{B}_4\text{O}_7 + 8 \text{HCl} \rightarrow 4 \text{H}_3\text{BO}_3 + 2 \text{NaCl} + 6 \text{H}_2\text{O} \]

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