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TS EAMCET · Chemistry · p Block Elements (Group 13 & 14)

\(A\) and \(B\) are formed when borax is dissolved in water. \(C\) and \(B\) are formed when borax is reacted with aqueous \(\mathrm{HCl}\) solution. What are \(A\) and \(C\) respectively?

  1. A \(\mathrm{NaCl}, \mathrm{NaOH}\)
  2. B \(\mathrm{NaOH}, \mathrm{NaCl}\)
  3. C \(\mathrm{NaBO}_2, \mathrm{NaCl}\)
  4. D \(\mathrm{NaOH}, \mathrm{NaBO}_2\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\mathrm{NaOH}, \mathrm{NaCl}\)

Step-by-step Solution

Detailed explanation

The reaction of borax \(\left(\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7\right)\) with water occurs as follows: Hence, \((A)=\mathrm{NaOH}\) and \((C)=\mathrm{NaCl}\) (C) Hence, option (b) is the correct answer.