Chemistry Class 11 Question Answer & Video

Properties of Alkenes

Video For All Chapters Chemistry Class 11

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. Ethene and ethyne can be distinguished by:

Bromine water

KMnO₄ solution

Ammoniacal Cuprous chloride solution

Any of the above

Question 1 of 10

2. Photochemical chlorination of alkane is initiated by process called:

Homolysis

Pyrolysis

Substitution

Peroxidation

Question 2 of 10

3. When H⁺ attacks CH₃ - CH = CH₂ , carbonation which is more stable is

CH₃ - CH₂ - CH₂

CH₂⁺ - CH₂ - CH₃

CH₃ - CH⁺ - CH₃

CH₃ - CH₂ - CH₂⁺

Question 3 of 10

4. Propene reacts with sulphuric acid to form:

Propyl sulphate

Propyl hydrogen sulphate

Propane hydrogen sulphate

Propene hydrogen sulphate

Question 4 of 10

5. Ethylene reacts with HBr to give:

Acetylene

Ethyl alcohol

Acetaldehyde

Ethyl bromide

Question 5 of 10

6. Propene on ozonolysis forms:

Acetaldehyde

Formaldehyde

Both acetaldehyde and formaldehyde

Acetone

Question 6 of 10

7. The alkene which on ozonolysis gives only acetone is:

(CH₃)₂C = CH₂

CH₃CH = CHCH₃

CH₃CH = C(CH3)₂

(CH₃)₂C = C(CH₃)₂

Question 7 of 10

8. Alkenes react with water in presence of a few drops of conc. sulphuric acid to form:

Vicinal glycols

Geminal glycols

Both (A) & (B)

None of the above

Question 8 of 10

9. Addition of halogens to alkenes is an example of:

Nucleophilic addition reaction

Electrophilic addition reaction

Electrophilic substitution reaction

Nucleophilic substitution reaction

Question 9 of 10

10. Cis isomer have:

High boiling point than trans isomer

Lower boiling point than trans isomer

Same boiling point

None of the above

Question 10 of 10

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