\(H_3BO_3+H_2O ⇌ [B(OH)_4]^−+H⨁\)
Boric acid is not able to release H+ ion on its own.
It receives \(OH^–\) ion from water and releases \(H^+\) ion as shown in the above reaction.
Hence, Both A and R are correct and R is the correct explanation of A.




Which one of the following graphs accurately represents the plot of partial pressure of CS₂ vs its mole fraction in a mixture of acetone and CS₂ at constant temperature?

Let \( \alpha = \dfrac{-1 + i\sqrt{3}}{2} \) and \( \beta = \dfrac{-1 - i\sqrt{3}}{2} \), where \( i = \sqrt{-1} \). If
\[ (7 - 7\alpha + 9\beta)^{20} + (9 + 7\alpha - 7\beta)^{20} + (-7 + 9\alpha + 7\beta)^{20} + (14 + 7\alpha + 7\beta)^{20} = m^{10}, \] then the value of \( m \) is ___________.






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