Answer
Verified
421.5k+ views
Hint: The oxidation of benzene by Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] in the presence of air is D. A Dowden mechanism. We have to see where the cleavage will take place and what kind of anhydride will be formed.
Complete step by step answer:
When one molecule of benzene reacts with two molecules of vanadium pentoxide and one and a half mole of oxygen, we get one of maleic anhydride, one molecule of glyoxylic or aldehyde acid, two moles of vanadium trioxide and one mole of water. During this process, the cleavage of the benzene ring takes place and form diodic acid and this acid will then undergo dehydration to form an anhydride by the same Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] molecules and it will cleave any double bonds that are present in the ring.
The oxidation of benzene by \[{V_2}{O_5}\] in the presence of air produces maleic anhydride. The oxidation is carried out at \[500^\circ C\] .
So, the oxidation of benzene by Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] in the presence of air produces maleic anhydride.
Therefore, the correct answer is option (D).
Note: Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] is a yellow to red crystalline powder which is slightly soluble in water and denser than water. Its contact may cause severe irritation to skin, eyes, and mucous membranes and it may be toxic by ingestion, inhalation and skin absorption. Vanadium pentoxide is used in different, industrial processes as catalyst such as in the contact process, it serves for the oxidation of \[S{O_2}\] to \[S{O_3}\] with oxygen at \[440^\circ C\]. Besides it is used in the oxidation of ethanol to ethanal and in the production of phthalic anhydride, polyamide, oxalic acid and further products.
Complete step by step answer:
When one molecule of benzene reacts with two molecules of vanadium pentoxide and one and a half mole of oxygen, we get one of maleic anhydride, one molecule of glyoxylic or aldehyde acid, two moles of vanadium trioxide and one mole of water. During this process, the cleavage of the benzene ring takes place and form diodic acid and this acid will then undergo dehydration to form an anhydride by the same Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] molecules and it will cleave any double bonds that are present in the ring.
The oxidation of benzene by \[{V_2}{O_5}\] in the presence of air produces maleic anhydride. The oxidation is carried out at \[500^\circ C\] .
So, the oxidation of benzene by Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] in the presence of air produces maleic anhydride.
Therefore, the correct answer is option (D).
Note: Vanadium pentoxide \[\left( {{V_2}{O_5}} \right)\] is a yellow to red crystalline powder which is slightly soluble in water and denser than water. Its contact may cause severe irritation to skin, eyes, and mucous membranes and it may be toxic by ingestion, inhalation and skin absorption. Vanadium pentoxide is used in different, industrial processes as catalyst such as in the contact process, it serves for the oxidation of \[S{O_2}\] to \[S{O_3}\] with oxygen at \[440^\circ C\]. Besides it is used in the oxidation of ethanol to ethanal and in the production of phthalic anhydride, polyamide, oxalic acid and further products.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Advantages and disadvantages of science
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
10 examples of evaporation in daily life with explanations
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
How do you graph the function fx 4x class 9 maths CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Difference Between Plant Cell and Animal Cell
What are the monomers and polymers of carbohydrate class 12 chemistry CBSE