Question

Which of the following is not a correct acid-base neutralization reaction?

HI + KOH --> KI + H20

Ca(OH)2 + HCl --> CaCl + H2O

CH3COOH _ NH4OH --> NH4CH3COO + H2O

HBr _ CsOH --> CsBr + H2O

Answer 1

Ca(OH)2 + HCl → CaCl + H2O is not a correct acid- base neutralization reaction

Step-by-step explanation

Acid and base react to form salt and water.

The reaction of Ca(OH)2 + HCl → CaCl2 +H2O is not correct because

1. The formula of salt formed is incorrect. It is suppose to be CaCl2 since Ca has a charge of 2+ while cl- has a charge of -1. Therefore to form ionic bond 2 Cl ion are needed.
2. The equation is not balanced. there is suppose to be 2 in front of HCl and in front of H2O

Therefore the correct acid -base neutralization reaction is as below

Ca(OH)2 + 2HCl→ CaCl2 + 2H2O