Baking soda is

The neutralization of a strong acid by a strong base liberates an amount of energy per mole of $H^{+}$ that:

The values of dissociation constants $(K_a)$ of some acids (at $25\,^{\circ}C$) are as follows. Indicate which is the strongest acid in water:
$(A)$ $1.4 \times 10^{-2}$
$(B)$ $1.6 \times 10^{-4}$
$(C)$ $4.4 \times 10^{-10}$
$(D)$ $4.3 \times 10^{-7}$

The conjugate acid of $HPO_4^{2-}$ is

Identify the conjugate bases of $H_3PO_3$ and $H_2SO_4$ respectively from the following.

Which of the following shows weak ionisation in water?