318271
Assertion : Benzene does not undergo addition reactions. Reason : Benzene has lower heat of hydrogenation.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Benzene does not undergo addition reactions although it is highly unsaturated due to resonance stabilization. Heat of hydrogenation of benzene is low as it is stable. Thus option (2) is correct.
CHXI13:HYDROCARBONS
318272
Which of the following reactions is used to prepare toluene from bromobenzene?
1 Wurtz reaction
2 Fittig reaction
3 Wurtz - Fittig reaction
4 Swarts reaction
Explanation:
When a mixture of an alkyl halide and aryl halide is treated with sodium in dry ether, an alkyl arene is obtained. This reaction is known as Wurtz-Fittig reaction.
MHTCET - 2022
CHXI13:HYDROCARBONS
318273
Benzene on catalytic oxidation at \(500^{\circ} \mathrm{C}\) with \(\mathrm{V}_{2} \mathrm{O}_{5}\) as catalyst gives:
1 Maleic anhydride
2 Acetylene
3 Maleic acid
4 None of these
Explanation:
CHXI13:HYDROCARBONS
318274
The two compounds (I) Chlorobenzene and (II) benzene hexachloride are obtained from benzene by the reaction of chlorine, in the presence of
1 (I) UV or 500 K and (II) anhydrous \(\mathrm{AlCl}_{3}\) (Dark and Cold)
2 (I) Sodium hydroxide and (II) Sulphuric acid
3 (I) UV or 500 K and (II) anhydrous \(\mathrm{FeCl}_{3}\)
4 (I) Anhydrous \(\mathrm{AlCl}_{3}\) and (II) UV or 500 K
318271
Assertion : Benzene does not undergo addition reactions. Reason : Benzene has lower heat of hydrogenation.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Benzene does not undergo addition reactions although it is highly unsaturated due to resonance stabilization. Heat of hydrogenation of benzene is low as it is stable. Thus option (2) is correct.
CHXI13:HYDROCARBONS
318272
Which of the following reactions is used to prepare toluene from bromobenzene?
1 Wurtz reaction
2 Fittig reaction
3 Wurtz - Fittig reaction
4 Swarts reaction
Explanation:
When a mixture of an alkyl halide and aryl halide is treated with sodium in dry ether, an alkyl arene is obtained. This reaction is known as Wurtz-Fittig reaction.
MHTCET - 2022
CHXI13:HYDROCARBONS
318273
Benzene on catalytic oxidation at \(500^{\circ} \mathrm{C}\) with \(\mathrm{V}_{2} \mathrm{O}_{5}\) as catalyst gives:
1 Maleic anhydride
2 Acetylene
3 Maleic acid
4 None of these
Explanation:
CHXI13:HYDROCARBONS
318274
The two compounds (I) Chlorobenzene and (II) benzene hexachloride are obtained from benzene by the reaction of chlorine, in the presence of
1 (I) UV or 500 K and (II) anhydrous \(\mathrm{AlCl}_{3}\) (Dark and Cold)
2 (I) Sodium hydroxide and (II) Sulphuric acid
3 (I) UV or 500 K and (II) anhydrous \(\mathrm{FeCl}_{3}\)
4 (I) Anhydrous \(\mathrm{AlCl}_{3}\) and (II) UV or 500 K
318271
Assertion : Benzene does not undergo addition reactions. Reason : Benzene has lower heat of hydrogenation.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Benzene does not undergo addition reactions although it is highly unsaturated due to resonance stabilization. Heat of hydrogenation of benzene is low as it is stable. Thus option (2) is correct.
CHXI13:HYDROCARBONS
318272
Which of the following reactions is used to prepare toluene from bromobenzene?
1 Wurtz reaction
2 Fittig reaction
3 Wurtz - Fittig reaction
4 Swarts reaction
Explanation:
When a mixture of an alkyl halide and aryl halide is treated with sodium in dry ether, an alkyl arene is obtained. This reaction is known as Wurtz-Fittig reaction.
MHTCET - 2022
CHXI13:HYDROCARBONS
318273
Benzene on catalytic oxidation at \(500^{\circ} \mathrm{C}\) with \(\mathrm{V}_{2} \mathrm{O}_{5}\) as catalyst gives:
1 Maleic anhydride
2 Acetylene
3 Maleic acid
4 None of these
Explanation:
CHXI13:HYDROCARBONS
318274
The two compounds (I) Chlorobenzene and (II) benzene hexachloride are obtained from benzene by the reaction of chlorine, in the presence of
1 (I) UV or 500 K and (II) anhydrous \(\mathrm{AlCl}_{3}\) (Dark and Cold)
2 (I) Sodium hydroxide and (II) Sulphuric acid
3 (I) UV or 500 K and (II) anhydrous \(\mathrm{FeCl}_{3}\)
4 (I) Anhydrous \(\mathrm{AlCl}_{3}\) and (II) UV or 500 K
318271
Assertion : Benzene does not undergo addition reactions. Reason : Benzene has lower heat of hydrogenation.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Benzene does not undergo addition reactions although it is highly unsaturated due to resonance stabilization. Heat of hydrogenation of benzene is low as it is stable. Thus option (2) is correct.
CHXI13:HYDROCARBONS
318272
Which of the following reactions is used to prepare toluene from bromobenzene?
1 Wurtz reaction
2 Fittig reaction
3 Wurtz - Fittig reaction
4 Swarts reaction
Explanation:
When a mixture of an alkyl halide and aryl halide is treated with sodium in dry ether, an alkyl arene is obtained. This reaction is known as Wurtz-Fittig reaction.
MHTCET - 2022
CHXI13:HYDROCARBONS
318273
Benzene on catalytic oxidation at \(500^{\circ} \mathrm{C}\) with \(\mathrm{V}_{2} \mathrm{O}_{5}\) as catalyst gives:
1 Maleic anhydride
2 Acetylene
3 Maleic acid
4 None of these
Explanation:
CHXI13:HYDROCARBONS
318274
The two compounds (I) Chlorobenzene and (II) benzene hexachloride are obtained from benzene by the reaction of chlorine, in the presence of
1 (I) UV or 500 K and (II) anhydrous \(\mathrm{AlCl}_{3}\) (Dark and Cold)
2 (I) Sodium hydroxide and (II) Sulphuric acid
3 (I) UV or 500 K and (II) anhydrous \(\mathrm{FeCl}_{3}\)
4 (I) Anhydrous \(\mathrm{AlCl}_{3}\) and (II) UV or 500 K
