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Benzne can be obtained by heating either...

Benzne can be obtained by heating either benzoic acid with X or phenol with Y.X and Y, respectively are

A

Zinc dust and soda lime

B

Soda lime and zinc dust

C

Zinc dust and sodium hydroxide

D

Soda lime and copper

Text Solution

Verified by Experts

The correct Answer is:
B
`underset("Benzoic acid")(C_6H_5COOH)+underset((X))(NaOH) rarr underset("benzoic acid")underset("Sod. Salt of")(C_6H_5COONa)+H_2Ooverset(NaOH)underset("Decarboxylation")rarr C_6H_6+Na_2CO_3`
`underset("Phenol")(C_6H_5OH)+underset((Y))(Zn) overset("distill")rarr c_6H_6 + ZnO`
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ERRORLESS-HYDROCARBONS-NCERT BASED QUESTION (AROMATIC HYDROCARBON)
  1. Benzene is prepared in laboratory from which one of the following comp...

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  2. Electrophile in the case of chlorination of benzene in presence of FeC...

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  3. Benzne can be obtained by heating either benzoic acid with X or phenol...

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  4. Find the major product in the following reaction

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  5. Which among the following is very strong o-p-directing groups?

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  6. Which of the following compounds react slower than benzene in electrop...

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  7. Which of the following order is correct for the decreasing reactivity ...

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  8. Attacking or reactive or electrophilic species in nitration of benzene...

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  9. The attacking reagent in electrophilic sulphonation of benzene is

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  10. The compound that is most reactive towards electrophilic nitration...

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  11. Which of the following would be least reactive towards bromide

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  12. Acylation of benzene to produce aliphatic aromatic ketones is known as

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  13. (i)Chlorobenzene and (ii) benzene hexachloride are obtained from benze...

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  14. Which of the following group activates the benzene ring most towards e...

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  15. A compound 'A' when treated with HNO(3) (in presence of H(2)SO(4)) giv...

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  16. The strongest ortho/para and the strongest meta directing groups, resp...

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  17. Chlorobenzene is o, p- directing in electrophilic substitution reacti...

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  18. , The compound B is

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  19. Best reagent for nuclear iodination of aromatic compounds is

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  20. Friedel-Crafts reaction is not given by:

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