Borax is converted into crystalline boron by the following steps- Borax X- H3BO3- B2O3 BThen X and Y are respectively-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Oxides of Sulphur

Borax is conv...

Question

Borax is converted into crystalline boron by the following steps:
$B o r a x X \to H_{3} B O_{3} Δ \to B_{2} O_{3} Y - \to Δ B$
Then $X$ and $Y$ are respectively:

H C l, M g

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

H C l, C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C, A l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

H C l, A l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $H C l, M g$
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 $H_{2} S O_{4}$ .

Hence, the correct option is $A$ .

Suggest Corrections

Similar questions

Borax is converted into crystalline boron by the following steps.

$B o r a x x ⟶ H_{3} B O_{3} H e a t ⟶ B_{2} O_{3} y ⟶ H e a t B$
X & Y are respectively

Q. 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

Q. The following sequence of reactions are used to convert Borax into Boron.

N a_{2} [B_{4} O_{5} (O H)_{4}] .8 H_{2} O X - \to H_{3} B O_{3} △ - \to B_{2} O_{3} Y \to B B o r o n

Reagents X and Y are respectively:

Complete and balance the following reactions.

(a) $N a + H_{2} O \to$ _________ + _________

(b) $C a + H_{2} O \to$ __________+_________

(d) $Z n + H_{2} O \to$ ___________+_________

(e) $F e + H_{2} O \to$ ____________+_________

(f) $Z n + H C l \to$ _____________+__________

(g) $A l + H_{2} S O_{4} \to$ __________+_________

(h) $F e + H C l \to$ ___________+____________

(i) $Z n + N a O H \to$ __________+____________

(j) $A l + K O H + H_{2} O$ _________+____________

Join BYJU'S Learning Program

Borax is converted into crystalline boron by the following steps:BoraxX→H3BO3Δ→B2O3Y−→ΔBThen X and Y are respectively:

Borax is converted into crystalline boron by the following steps:
$B o r a x X \to H_{3} B O_{3} Δ \to B_{2} O_{3} Y - \to Δ B$
Then $X$ and $Y$ are respectively: