Select the correct statement(s).

NH4++Cl−+H2O⇌NH4OH+H++Cl− NH4++H2O⇌NH4OH+H+  acidic H+due to NH4+thus, correct   (b) CH3COO−+H2O⇌CH3COOH+OH−  basic OH−due to CH3COO−thus, incorrect.   (c) At 100∘C,Kw=H+OH−=1×10−12 ∴ H+=OH−1=10−6 pH=pOH=6, thus, neutral.  Thus, incorrect.  (d) HCl is an acid pH<7 thus, incorrect.