P-Block Elements Ques 4
Question: When orthoboric acid $ (H_3BO_3) $ is heated, the residue left is
[Pb. PMT 2002]
Options:
A) Metaboric acid
B) Boron
C) Boric anhydride
D) Borax
Show Answer
Answer:
Correct Answer: C
Solution:
$ 2H_3BO_3\to B_2O_3+3H_2O $ .