P-Block Elements Ques 223
Question: $ Ca_2B_6O_{11}+2Na_2CO_3\to X-2CaCO_3+2NaBO_2. $ The compound X in the above reaction is
Options:
A) $ Na_2B_4O_7 $
B) $ HBO_2 $
C) $ H_3BO_3 $
D) $ H_2B_4O_7 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ \underset{Colemanite}{\mathop{Ca_2B_6O_{11}}}+2Na_2CO_3\to \underset{(X)(Borax)}{\mathop{Na_2B_4O_7}}+2NaBO_2+2CaCO_3 $
