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(A) : Benzene is almost non-reactive and...

(A) : Benzene is almost non-reactive and it can not be oxidised easily
(R ) : Benzene is aromatic and obeys Hinckel rule.

A

A and R are true, R explains A

B

A and R are true, R does not explain A

C

A is true, but R is false

D

A is false, but R is true

Text Solution

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The correct Answer is:
B
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(A) : Benzene molecule is aromatic. (R ) : Benzene molecule obeys Huckel's rule.

(A) : Benzene decolourises cold alkaline potassium permanganate solution (R) : Benzene is aromatic hydrocarbon

Aromaticity in benzene is due to

(A) Benzene does not undergo polymerisation. (R) Benzene loses aromaticity if involved in polymerisation

Benzene does not undergo addition reaction easily because

Benzene does not undergo addition reaction easily because

(A) : Benzene reacts with n-propyl chloride in presence of AlCl_(3) to give isopropyl benzene. (R ) : Benzene undergoes electrophilic substitution readily.

Among the following statements on the nitration of aromatic compounds, find the number of false statement(s)? i) The rate of benzene is almost the same as that of hexadeuterobenzene. ii) Loss of aromaticity when overset(oplus)NO_2 attacks at ortho and Para position and not at Meta position. iii) Nitrobenzene prepared from benzene by using a mixture of conc. HNO_3 and conc. H_2SO_4 in which HNO_3 act as a base iv) Nitration is an electrophilic substitution reaction.

(A): HCl is not acidic in benzene. (R): Benzene does not accept protons

AAKASH SERIES-AROMATIC HYDROCARBONS-OBJECTIVE EXERCISE-1
  1. Which of the following reaction is useful to convert benzene into tolu...

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  2. In benzene molecule there are three pi bonds and

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  3. (A) : Benzene is almost non-reactive and it can not be oxidised easily...

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  4. Which is false statement with respect to benzene ?

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  5. In the above sequence B is

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  6. Which of the following behaves as a saturated compound?

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  7. C(2)H(2) underset("metal tube")overset("Red hot")to A overset("Fuming ...

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  8. What is the molecular formula of the product formed when benzene is re...

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  9. The compound prepared by a substitution reaction of benzene is

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  10. To get benzene, coal tar is subjected to

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  11. The two structures of benzene proposed by Kekule differ in

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  12. Resonance energy of benzene is

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  13. In benzene there is

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  14. The C-C bond lengths in benzene are

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  15. The number of pi electrons in benzene is

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  16. (A) : Both benzene and ethyne give same product on ozonolysis. (R )...

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  17. {:("List-I","LIST-2"),("A) Methane","1) Hawker's lamp"),("B) Ethylene"...

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  18. According to the molecular formula, benzene appears to be highly unsat...

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  19. Which of the following statements is wrong

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  20. A group which deactivates the benzene ring towards electrophilic subst...

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