When orthoboric acid $(H_{3} B O_{3})$ is heated the residue left is:

Boron

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Metaboric acid

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Boric anhydride

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Borax

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Metaboric acid
B. Metaboric acid
Boric acid when heated above 170C it dehydrates forming metaboric acid. Metaboric acid when heated above 300C it further dehydrates forming pyroboric acid.
$H_{3} {B O}_{3} \to {H B O}_{2} + H_{2} O {4 H B O}_{2} \to H_{2} B_{4} O_{7} + H_{2} O$

Suggest Corrections

Similar questions

(H_{3} B O_{3})

(H_{3} B O_{3})

When orthoboric acid is heated to red heat the residue is

(H_{3} B O_{3})

(H B O_{2})

Join BYJU'S Learning Program