TS EAMCET · Chemistry · p Block Elements (Group 13 & 14)
When borax is dissolved in water, the product formed is
- A \(\mathrm{H}_3 \mathrm{BO}_3\)
- B \(\mathrm{H}_2 \mathrm{BO}_3\)
- C \(\mathrm{B}_2 \mathrm{H}_6\)
- D \(\mathrm{B}_2 \mathrm{O}_3\)
Answer & Solution
Correct Answer
(A) \(\mathrm{H}_3 \mathrm{BO}_3\)
Step-by-step Solution
Detailed explanation
Borax is \(\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7\). \[ \mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7+7 \mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{NaOH}+4 \mathrm{H}_3 \mathrm{BO}_3 \] Borax produce sodium borate and boric acid on the hydrolysis.
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