question_answer

What will be the main product, when benzene vapours are passed over\[{{V}_{2}}{{O}_{5}}\]at\[450{}^\circ C\]?

A) \[\underset{CH.COOH}{\overset{CH.COOH}{\mathop{|\,|}}}\,\]                             

B)  

C)                             

D)  

Correct Answer: B

Solution :

                 Maleic anhydride is obtained by the oxidation of benzene in the presence of\[{{V}_{2}}{{O}_{5}}\]at\[450{}^\circ C\]. \[2{{C}_{6}}{{H}_{6}}+9{{O}_{2}}\xrightarrow[{{450}^{o}}C]{{{V}_{2}}{{O}_{5}}}\]