Which of the following is not an acid-base neutralization reaction?
Asked by maham237 @ in Chemistry viewed by 354 People
NH3 + HCl yields NH4Cl
H2 + Br2 yields 2 HBr
HCl + HBr yields H2 + ClBr
2 HBr + Ca(OH)2 yields CaBr2 + 2 H2O
Answered by maham237 @
A neutralization process is a reaction between an acid and a base which yields a salt and water. From the choices, a neutralization reaction would be: 2 HBr + Ca(OH)2 yields CaBr2 + 2 H2O. Moreover, NH3 + HCl yields NH4Cl is also a neutralization reaction. The complete reaction is actually NH4OH + HCl --> NH4Cl + H2O. NH4OH is the aqueous solution of NH3. This reaction is still a neutralization reaction.
On the other hand, the reaction HCl + HBr yields H2 + ClBr is not valid. There is no reaction between HCl and HBr because both are strong acids. They would just dissociate into ions like H+, Cl- and Br-.
The valid reaction that is clearly not a neutralization process is H2 + Br2 yields 2 HBr. This is a combination reaction yielding a strong acid HBr.
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