Which of the following compounds is formed in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Answer:- $(A)$ MetaborateOn heating,borax loses its water of crystallization and swells up to form a fluffy mass. On further heating,it melts to g

Vedclass · Accepted Answer

Metaborate

Vedclass · Answer

(A) Answer:- $(A)$ MetaborateOn heating,borax loses its water of crystallization and swells up to form a fluffy mass. On further heating,it melts to give a clear liquid which solidifies to a transparent glassy bead consisting of sodium metaborate and boric anhydride.$Na_{2}B_{4}O_{7} \cdot 10H_{2}O$ $\xrightarrow{\Delta} Na_{2}B_{4}O_{7}$ $\xrightarrow{\Delta} 2NaBO_{2} + B_{2}O_{3}$In the presence of transition metal oxides,the bead forms colored metal metaborates,e.g.,$CoO + B_{2}O_{3} \rightarrow Co(BO_{2})_{2}$. Thus,metaborate is the key component formed.

Which of the following compounds is formed in the borax bead test?

Similar Questions

What does orthoboric acid contain?

Which one of the following is the correct statement?

Explain what happens when boric acid is heated.

In moist air,$AlCl_3$ fumes because:

Which hydroxides of group $13$ are amphoteric in nature?

Vedclass Test Series

Exam Paper Generator

Online Exam Module