Question

Borax is prepared by treating colemanite with :

• A. NaNO3
• B. NaCl
• C. Na2CO3
• D. NaHCO3

Answer 1

Answer: (C)

Na2CO3

Answer 2

Ca2B6O11 + Na2CO3 $\longrightarrow$ 2CaCO3 ¯ + Na2B4O7 + 2NaBO2