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 $ .



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