Borax is converted into crystalline Boron by the following steps Borax→ XH3BO3→ΔB2O3→ΔYB In the above sequence of reactions, X and Y are respectively:

Na2B4O7+2HCl¯+5H2O→ 2NaCl+4H3BO32H3BO3→ ΔB2O3+3H2O2Al¯+B2O3→ 2B+Al2O3

Borax is converted into crystalline Boron by the following steps Borax→ XH3BO3→ΔB2O3→ΔYB In the above sequence of reactions, X and Y are respectively:

Na2B4O7+2HCl¯+5H2O→ 2NaCl+4H3BO32H3BO3→ ΔB2O3+3H2O2Al¯+B2O3→ 2B+Al2O3

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Borax is converted into crystalline Boron by the following steps $B o r a x \to_{}^{X} H_{3} B O_{3} \overset{Δ}{\to} B_{2} O_{3} \to_{Δ}^{Y} B$
In the above sequence of reactions, X and Y are respectively:

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$H C l, C u$

$H C l, C$

$C, A l$

$H C l, A l$

answer is D.

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$N a_{2} B_{4} O_{7} + \underline{2 H C l} + 5 H_{2} O \to_{}^{} 2 N a C l + 4 H_{3} B O_{3}$

$2 H_{3} B O_{3} \to_{}^{Δ} B_{2} O_{3} + 3 H_{2} O$

$2 \underline{A l} + B_{2} O_{3} \overset{}{\to} 2 B + A l_{2} O_{3}$

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Borax is converted into crystalline Boron by the following steps Borax→ XH3BO3→ΔB2O3→ΔYB In the above sequence of reactions, X and Y are respectively:

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Borax is converted into crystalline Boron by the following steps $B o r a x \to_{}^{X} H_{3} B O_{3} \overset{Δ}{\to} B_{2} O_{3} \to_{Δ}^{Y} B$
In the above sequence of reactions, X and Y are respectively: