A certain salt X gives the following reactions (ii) It swells up to a glassy matter Y on heating

A certain salt X gives the following reactions (ii) It swells up to a

1.	A certain salt X gives the following reactions (ii) It swells up to a glassy matter Y on heating
Answer» ANSWER :`Na_2B_4O_7.10h_2Ounderset(-H_2O)OVERSET(HEAT)rarrNa_2B_4O_overset(heat)rarr2NaBO_2+B_2O_3`