Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because

Between sodium hydrogencarbonate and magnesium hydroxide,which is a better antacid and why?

Which of the following cannot act both as Bronsted acid and as Bronsted base?

Acidity of $BF_3$ can be explained on which of the following concepts?

$CH_3COOH_{(aq)} + H_2O_{(l)} \rightleftharpoons H_3O^{+}_{(aq)} + CH_3COO^{-}_{(aq)}$. Between $H_2O$ and $CH_3COO^{-}$,which one is the weaker base?

The position of equilibrium lies to the right in each of these reactions:
$N_2H_5^+ + NH_3 \rightleftharpoons NH_4^+ + N_2H_4$
$NH_3 + HBr \rightleftharpoons NH_4^+ + Br^{-}$
$N_2H_4 + HBr \rightleftharpoons N_2H_5^+ + Br^{-}$
Based on this information,what is the order of acidic strength?