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Home » A certain salt gives the following results. (i) Its aqueous solution is alkaline to litmus. (ii) It swells up to a glassy material on strong heating. (iii) When conc. is added to a hot solution of , a white crystal of an acid separates out Write equations for all the above reactions and identify X, , and .
A certain salt X gives the following results. (i) Its aqueous solution is alkaline to litmus. (ii) It swells up to a glassy material \mathbf{Y} on strong heating. (iii) When conc. \mathrm{H}_{2} \mathrm{SO}_{4} is added to a hot solution of \mathrm{X}, a white crystal of an acid \mathrm{Z} separates out Write equations for all the above reactions and identify X, Y, and Z.
CBSE | Chemistry | Class 11 | Exercise 1 | NCERT | The p-Block Elements
A certain salt X gives the following results. (i) Its aqueous solution is alkaline to litmus. (ii) It swells up to a glassy material \mathbf{Y} on strong heating. (iii) When conc. \mathrm{H}_{2} \mathrm{SO}_{4} is added to a hot solution of \mathrm{X}, a white crystal of an acid \mathrm{Z} separates out Write equations for all the above reactions and identify X, Y, and Z.

Solution:

The salt given to litmus is antacid. X is, subsequently, a salt with a solid base, and a feeble corrosive. When X is warmed unnecessarily, it additionally enlarges to frame material Y. Subsequently X must be borax. When warmed, borax loses water and enlarges to shape sodium metaborate. When warming is proceeded, the framing of a smooth material Y sets. In this way, Y should be a combination of metaborate sodium and boric anhydride.
At the point when concentrated corrosive is added to borax, white precious stones of orthoboric corrosive (Z) are framed.
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