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Isomerism in Coordination Compounds

Aromatization...

Question

Aromatization in alkane can be brought by using:

A

A l_{2} O_{3}

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B

F e_{2} O_{3}

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C

C r_{2} O_{3} / A l_{2} O_{3}

at

600^{0} C

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D

Conc.

H_{2} S O_{4}

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Solution

The correct option is C $C r_{2} O_{3} / A l_{2} O_{3}$ at $600^{0} C$
Aromatization in alkane can be brought by using $C r_{2} O_{3} / A l_{2} O_{3}$ at $600^{0} C$ .

This process is known as reforming.

In this reaction, one hydrogen atom is removed from each terminal carbon atom of n-hexane to form cyclohexane. This is cyclization reaction.

This is followed by the removal of three hydrogen molecules to form benzene. This is aromatization reaction.

Option C is correct.

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Similar questions

10 g

A l

is used for reduction in each of the following alumino thermic reactions, which reaction would generate more heat and by how much ?
a.

2 A l + C r_{2} O_{3} \to A l_{2} O_{3} + 2 C r

2 A l + F e_{2} O_{3} \to A l_{2} O_{3} + 2 F e

Standard heat of formation of

A l_{2} O_{3}

C r_{2} O_{3}

F e_{2} O_{3}

- 1676 k J

- 1141 k J

- 822.2 k J

, respectively.

C r_{2} O_{3}

F e_{2} O_{3}

A l_{2} O_{3}

are isomorphous but

N a N O_{3}

K N O_{3}

are not isomorphous.

Q. Which is used to separate

A l_{2} O_{3}

F e_{2} O_{3}

n- Octane in the presence of Cr₂O₃/Al₂O₃ at 873K changes to

Q. Which reducing agent is used for reducing

Z n O, F e_{2} O_{3}, A l_{2} O_{3}

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