The ammonium ion $(NH_4^+)$ is a/an ...........

When a strong acid,strong base,or their salt are dissolved in water,they are completely ionised. If a strong acid is added to a strong base,$H^{+}$ ions from the former combine with $OH^{-}$ ions of the latter forming water. The formation of each water molecule liberates a certain quantity of energy and the reaction is exothermic. The heat liberated when one mole of water is formed by combining hydrochloric acid and sodium hydroxide is $13.7 \, kcal$. The heat liberated when one mole of water is formed by combining sulphuric acid and sodium hydroxide is......$kcal$

Which one of the following is not an amphoteric substance?

Which of the following $0.1 \ M$ solution will contain the largest concentration of hydronium ions?

What will be the decreasing order of basic strength of the following conjugate bases?
$OH^{-}, RO^{-}, CH_3COO^{-}, Cl^{-}$

What will be the $pH$ of the solution if $BCl_3$ is dissolved in water?