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  • When borax is heated strongly it gives:Option: 1 <img alt="\mathrm{B _{2} O _{3}}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7BB

When borax is heated strongly it gives:

Option: 1

\mathrm{B _{2} O _{3}}


Option: 2

\mathrm{N a_{2} B_{4} O_{7}}


Option: 3

\mathrm{NaBO _{2}}


Option: 4

\mathrm{NaBO _{2}+ B _{2} O _{3}}


Answers (1)

best_answer

As we have learnt,

Mild heating of Borax removes the water of hydration. On further heating, it is converted to Sodium Metaborate and Boric Oxide 

 \mathrm{Na_2B_4O_7.10H_2O\xrightarrow[\Delta]{-10H_2O} Na_2B_4O_7\overset{\Delta }{\rightarrow}2NaBO_2+B_2O_3}

Therefore, option (4) is correct.

Posted by

himanshu.meshram

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