Which of the following reactions is correct?

CHEMISTRY
POST UTME UI

Which of the following reactions is correct?

  • A)
    C\(_6\)H\(_5\)COOH + CaO \(\rightarrow\) C\(_6\)H\(_5\)Ca + HCO\(_3\)
  • B)
    C\(_6\)H\(_5\)COOH + CaO \(\rightarrow\) C\(_6\)H\(_6\) + CaCO\(_3\)
  • C)
    C\(_6\)H\(_5\)COOH + PCl\(_5\) \(\rightarrow\) C\(_6\)H\(_5\)Cl + H\(_2\)PO\(_4\)
  • D)
    C\(_6\)H\(_5\)COOH + C\(_2\)H\(_5\)OH \(\rightarrow\) C\(_6\)H\(_6\) + C\(_3\)H\(_8\)COOH

Correct Answer: B)
C\(_6\)H\(_5\)COOH + CaO \(\rightarrow\) C\(_6\)H\(_6\) + CaCO\(_3\)

Explanation

The correct reaction among the given options is:

Option B: C\(_6\)H\(_5\)COOH + CaO \(\rightarrow\) C\(_6\)H\(_6\) + CaCO\(_3\)

This reaction is an example of a reaction between an organic acid and a metal oxide. In this case, benzoic acid (C\(_6\)H\(_5\)COOH) reacts with calcium oxide (CaO) to form benzene (C\(_6\)H\(_6\) and calcium carbonate (CaCO\(_3\).

When an organic acid reacts with a metal oxide, the hydrogen (H) from the acid combines with the oxygen (O) from the metal oxide to form water (H\(_2\)O), and the remaining parts of the molecules combine to form a new compound. In this case, the hydrogen from benzoic acid and the oxygen from calcium oxide combine to form water, which then evaporates, leaving behind benzene and calcium carbonate.

It is important to note that the other options presented do not represent correct reactions, either because the products do not match the reactants or because the reactions do not follow the expected patterns for the given reactants.



Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *
Add Math
Don't want to keep filling in name and email whenever you make a contribution? Register or login to make contributing easier.