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03/01/2022 2:20 pm
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A borax is converted into crystalline boron by the following steps:
Borax \(\overset{X}\longrightarrow\)H3BO3 \(\overset{\Delta}\longrightarrow\)B2O3 \(\overset{Y}{\underset{\Delta}\longrightarrow}\)B
X and Y are respectively:
(1) HCl, Mg
(2) HCl, C
(3) C, Al
(4) HCl, Al
This topic was modified 3 years ago by admin
1 Answer
1
03/01/2022 2:26 pm
Answer: (4) HCl, Al
Explanation:
Borax \(\overset{HCl}\longrightarrow\)H3BO3
B2O3 \(\overset{Al}{\underset{\Delta}\longrightarrow}\)B(crystalline)
B2O3 \(\overset{Mg}{\underset{\Delta}\longrightarrow}\)B(Amorphous)
This post was modified 3 years ago by admin