Amorphous boron is extracted from borax following steps - Borax A - H3BO3 Heat- B2O3 B - Boron- A and B are

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Reaction of Metals with Acid

Amorphous bor...

Question

Amorphous boron is extracted from borax following steps :

$B o r a x (A) \to H_{3} B O_{3} H e a t \to B_{2} O_{3} (B) \to B o r o n$ . $(A)$ and $(B)$ are

acid,

C u

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acid, carbon

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acid,

F e

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acid,

M g

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Solution

The correct option is D acid, $M g$
In first step,Boric acid is obtained by treating a hot concentrated solution of borax with hydrochloric acid or sulphuric acid. The resulting solution on concentration and cooling gives crystals of boric acid. here acid used is HCl or $H_{2} S O_{4}$ .

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Amorphous boron is extracted from borax following steps :Borax(A)→H3BO3Heat→B2O3(B)→Boron. (A) and (B) are

The correct option is D acid, MgIn first step,Boric acid is obtained by treating a hot concentrated solution of borax with hydrochloric acid or sulphuric acid. The resulting solution on concentration and cooling gives crystals of boric acid. here acid used is HCl or H2​SO4​.

Amorphous boron is extracted from borax following steps :

$B o r a x (A) \to H_{3} B O_{3} H e a t \to B_{2} O_{3} (B) \to B o r o n$ . $(A)$ and $(B)$ are

The correct option is D acid, $M g$
In first step,Boric acid is obtained by treating a hot concentrated solution of borax with hydrochloric acid or sulphuric acid. The resulting solution on concentration and cooling gives crystals of boric acid. here acid used is HCl or $H_{2} S O_{4}$ .