12th Class Chemistry Chapter 08 MCQs with Answers

Welcome to the 12th Class Chemistry Chapter 08 MCQs Online Test. We are presenting you with top MCQ questions from the 12th Class Chemistry Chapter Aliphatic Hydrocarbons.

We want to tell you that you can find all the 12th Class Chemistry Chapter 08 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 12 Chemistry MCQs online tests for those who want full marks in their exams. Attempt all these Grade 12 Chemistry Online Multiple Choice Questions MCQs before going for the exam and it will be beneficial for you! These online tests contain all the important multiple choice questions in the important topics of the FSC Part 2 Chemistry Chapter 08 Aliphatic Hydrocarbons. 

12th Class Chemistry Chapter 08 MCQs with Answers

Youth For Pakistan has provided an excellent opportunity for the students of the 12th class to prepare their Chemistry Chapter 08 Aliphatic Hydrocarbons online with MCQs test.

This is a free platform for students to prepare for Chemistry Exams for Class 12 to get the best accomplishments in annual exams. 12th class Students can analyze themself by attempting this online test system as many times as they want until they find themself fully prepared.

MCQs Class 12 Chemistry with Answers

The purpose of these online MCQs tests is to help you evaluate your 12th Class Chemistry Chapter 08 MCQs. These Multiple Choice Questions (MCQs) will prepare you for your academic success in the 12th Class Exams. 12th Class Chemistry Chapters include Chapter 1 Periodic Classification Of Elements & Periodicity, Chapter 2 S-block Elements, Chapter 3 Group lll A And Group IVA Elements, Chapter 4 Group VA And VIA Elements, Chapter 5 Halogens And Noble Gases, Chapter 6 Transition element, Chapter 7 Fundamental Principles Of Organic Chemistry, Chapter 8 Aliphatic Hydrocarbons, Chapter 9 Hydrocarbons, Chapter 10 Alkyl Halide, Chapter 11 Alcohols Phenols And Ethers, Chapter 12 Aldehydes & Ketones, Chapter 13 Carboxylic Acid, Chapter 14 Macromolecules, Chapter 15 Common Chemical Industries In Pakistan and Chapter 16 Environmental chemistry.

What is Aliphatic Hydrocarbons?

Aliphatic hydrocarbons are hydrocarbons based on chains of C atoms. There are three types of aliphatic hydrocarbons. Alkanes are aliphatic hydrocarbons with only single covalent bonds. Alkenes are hydrocarbons that contain at least one C–C double bond, and alkynes are hydrocarbons that contain a C–C triple bond.

Chapter No 8 Aliphatic Hydrocarbons

1. Preparation of vegetable ghee involves choose which one is correct:

1. Halogenation
2. Hydrogenation
3. Hydroxylation
4. Dehydrogenation

2. Which type of reactions are given by alkanes choose which one is correct:

1. Polymerization
2. Elimination
3. Addition
4. Substitution

3. The most reactive hydrocarbon is choose which one is correct:

1. Ethene
2. Acetylene
3. Heptane
4. Ethane

4. Formula of chloroform is choose which one is correct:

1. CH₃Cl
2. CCl₄
3. CH₂Cl₂
4. CHCl₃

5. Cycloalkanes and Alkenes contain which general formula choose which one is correct:

1. C_nH_2n+2
2. C_nH2n
3. C_nH_2n−2
4. C_nHn

6. Which of the following is not alicyclic choose which one is correct:

1. Cyclohexene
2. Cyclobutane
3. Toluene
4. Cyclopentene

7. Unsaturated nature of alkene can be detected by choose which one is correct:

1. Decolorization of red Br₂ water in CCl4
2. Decolorization of pink colour of KMnO₄ solution
3. Ozonolysis
4. All

8. The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule choose which one is correct:

1. Hund’s rule
2. Mankownikov’s rule
3. Pauli’s exclusion principle
4. Aufbau principle

9. Vicinal dihalides on treatment with Zn-dust give choose which one is correct:

1. Alkenes
2. Alkynes
3. Alkanes
4. All of them

10. Formula of lindlers catalyst is choose which one is correct:

1. Pb(BaSO₄) / Quinoline
2. Ba(PbSO₄) / Quinoline
3. Pd(BaSO₃) / Quinoline
4. Pd(BaSO₄) / Quinoline

11. Synthetic rubber is made by the polymerization of choose which one is correct:

1. Chloroform
2. Acetylene
3. Divinyl acetylene
4. Chloroprene

12. Ammonical solution of silver nitrate reacts with choose which one is correct:

1. 2-pentyne
2. Ethene
3. 2-butyne
4. Ethyne

13. Polymerization of acetylene forms choose which one is correct:

1. Propane
2. Butane
3. Benzene
4. Napthalene

14. The number of xylene isomers is choose which one is correct:

1. 2
2. 3
3. 4
4. 5

15. Number of acidic hydrogens present in 1-butyne is choose which one is correct:

1. 1
2. 2
3. 3
4. 4

16. Chemically Baeyer’s reagent is choose which one is correct:

1. 1% alkaline KMnO₄
2. 1% acidic KMnO₄
3. 15% alkaline KMnO₄
4. 2% alkaline KMnO₄

17. Which of the following gases is used for artificial ripening of fruits choose which one is correct:

1. Ethene
2. Ethyne
3. Methane
4. Both A. and (b)

18. Hydroxylation of alkene can be carried out by choose which one is correct:

1. Alkaline KMnO₄
2. O₃
3. H₂SO₄
4. K₂Cr₂O₇

19. Acetylene has a characteristic smell resembling that of choose which one is correct:

1. Rotten egg
2. Garlic
3. Spicy like
4. None of the above

20. When ethylene ozonide is treated with Zn-dust we get choose which one is correct:

1. Ethanal
2. Methanal
3. Methanol
4. Ethanol