Hydrocarbons Page 397 Q 13.20 Class 11 CBSE Chemistry

Hydrocarbons Page 397 Q 13.21 Class 11 CBSE Chemistry

Hydrocarbons Page 397 Q 13.22 Class 11 CBSE Chemistry

1. There will be total 10  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Aromatic compound containing Benzene Ring are known as:

 Arenes

 Non-Benzenoids

 Benzenoids

 Alkynes

Question 1 of 10

2. Which of the following is not aromatic?

 Tropylium cation

 Cyclopentadienyl cation

 Cyclopropenyl cation

 Cyclopentadienyl anion

Question 2 of 10

3. Methyl benzene can be prepared by the reaction of benzene with:

 CH₃COCl in the presence of AlCl₃

 CH₃Cl in the presence of AlCl₃

 CH₄ in the presence of Al

 C₂H₅Cl in the presence of AlCl₃

Question 3 of 10

4. Phenol is reduced to benzene in presence of:

  Ni

 Zn

 AlCl₃

 KOH

Question 4 of 10

5. The presence of resonance in benzene is justified on the basis of:

  C-C bond length

 None

 Both(1) and(2)

  C-H bond length

Question 5 of 10

6. The polynuclear hydrocarbons possessing carcinogenic property are formed from Organic materials by:

  Complete combustion

 Ozonolysis

 Reduction

 Incomplete combustion

Question 6 of 10

7. Aromatic hydrocarbons are also known as:

 Arenes

 Alkenes

 Alkyne

 Alkanes

Question 7 of 10

8. Benzene reacts with acetyl chloride in the presence of AlCl₃ to give:

  Acetophenone

 Ethyl benzene

 Benzophenone

 Toluene

Question 8 of 10

9. The structure of Benzene was given by

  Thomson

 Friedrich

 Farady

 Kekule

Question 9 of 10

10. When 2-butyne is passed through red hot iron tube, the product formed is:

  1,2,4- Trimethylbenzene

 Benzene

  Ethyl benzene

  1,2,3,4,5,6-Hexamethylbenzene

Question 10 of 10

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