NEET Chemistry Chemical Equilibrium Acid-Base Theories MCQs

A weak base, BOH, has a $K_b$ of $1.0 imes 10^{-5}$. A 0.1 M solution of BOH is titrated with 0.1 M HCl. At the equivalence point, the pH of the resulting solution will be closest to:

Which statement correctly describes the relationship between the Lewis acid-base theory and the Brønsted-Lowry theory?

According to the Lux-Flood definition, which of the following acts as an acid?

Which of the following species can act as both a Brønsted-Lowry acid and a Lewis base?

A solution is prepared by dissolving $0.01$ moles of $NH_4Cl$ and $0.1$ moles of $NH_3$ in $1$ L of water. If the $K_b$ for $NH_3$ is $1.8 imes 10^{-5}$, what is the approximate pH of the solution?

In the reaction $AlCl_3 + Cl^- \rightarrow AlCl_4^-$, which acid-base theory best describes the behavior of $AlCl_3$?

According to the Lewis theory, which of the following can act as a Lewis acid?

Which theory explains the acidic nature of AlCl3 in water?

Which of the following is NOT a Lewis base?

According to the Brønsted-Lowry theory, in the reaction $NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^-$, water acts as: