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UPSEE: Important Questions and Study notes for Hydrocarbons

Jan 12, 2018 17:50 IST
    UPSEE/UPTU 2018: Hydrocarbons
    UPSEE/UPTU 2018: Hydrocarbons

    Organic Chemistry is one of the most important parts of the Chemistry in the syllabus of UPSEE/UPTU entrance examination 2018. Because of the tough competition in engineering entrance examinations students can’t skip any topic of any subject.

    Organic Chemistry is the study of structure, preparation, physical properties and chemical properties of carbon containing compound. The chapter ‘Hydrocarbons’ is the base of the Organic Chemistry. It is very important to understand this chapter to understand the other topics of Organic Chemistry like Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers etc.

    In this article, students will get study notes and previous years’ solved questions related to chapter Hydrocarbons which will help in your preparation for UPSEE/UPTU entrance examination.

    Students can revise the following topics here:

    1. Preparation of alkanes from unsaturated hydrocarbons, alkyl halides and carboxylic acid

    2. Physical properties of alkanes

    3. Chemical properties of alkanes

    4. Preparation of alkenes from alkynes, alkyl halides, vicinal dihalides and alcohol

    5. Physical properties of alkenes

    6. Chemical properties of alkenes

    7. Preparation of alkynes from calcium carbides and vicinal dihalides

    8. Physical properties of alkynes

    9. Chemical properties of alkynes

    Mathematics all chapters complete notes for UPSEE/UPTU 2018

    Important Concepts:

    UPSEE Hydrocarbons Concepts 1

    Ozonolysis: Alkene Reactions

     

    UPSEE Hydrocarbons Concepts 2

    UPSEE: Important Questions and Preparation Tips – States of Matter

    UPSEE Hydrocarbons concepts 3

    UPSEE: Important Questions and Preparation Tips – Equilibrium

    Some previous years’ solved questions are given below:

    Question 1:

    Provide an acceptable name for the alkane shown below:

    UPSEE Hydrocarbons Question 1

    (A) 6–ethyl–2–methyl–5–propyldecane

    (B) 5–ethyl–6–methyl–2–propyldecane

    (C) 2–ethyl–6–methyl–2–propyldecane

    (D) 2–ethyl–6–methyl–5–propyldecane

    Solution 1:

    UPSEE Hydrocarbons Solution 1

    The name of the given compound is 6–ethyl–2–methyl–5–propyldecane.

    Hence, the correct option is (A).

    UPSEE: Important Questions and Preparation Tips – Thermodynamics (Part 1)

    Question 2:

    Which of the following compounds will exhibit geometrical isomerism?

    (A) 1–Phenyl–2–butane

    (B) 3–Phenyl–1–butene

    (C) 2–Phenyl–1–butene

    (D) 1,1–Diphenyl–1–propene

    Solution 2:

    UPSEE Hydrocarbons Solution 2

    The compound 1–Phenyl–2–butane will exhibit geometrical isomerism.

    Hence, the correct option is (A).

    UPSEE: Important Questions and Preparation Tips – Solutions

    Question 3:

    Provide the systematic name of the compound shown:

    UPSEE Hydrocarbons Question 3

    (A) 4 – butyl – 1 – ethyl – 2 – methylcycloheptane

    (B) 4 – butyl – 2 – ethyl – 1 – methylcycloheptane

    (C) 1 – butyl – 4 – ethyl – 3 – methylcycloheptane

    (D) 2 – butyl – 4 – ethyl – 1 – methylcycloheptane

    Solution 3:

    UPSEE Hydrocarbons Solution 3

    Naming according to closest set of locant rule is 4 – butyl – 1 – ethyl – 2 – methylcycloheptane.

    Hence, the correct option is (A).

    UPSEE: Important Questions and Preparation Tips – Periodic Classification & Periodicity in Properties

    Question 4:

    Which of the following compounds is insoluble even in hot concentrated H2SO4?

    (A) Ethylene (B) Benzene

    (C) Hexane (D) Aniline

    Solution 4:

    Hexane is insoluble even in hot concentrated H2SO4.

    Hence, the correct option is (C).

    UPSEE: Important Questions and Preparation Tips – Solid State

    Question 5:

    The number of possible alkynes with molecular formula C5H8 is

    (A) 1

    (B) 3

    (C) 5

    (D) 8

    Solution 5:

    UPSEE Hydrocarbons Solution 5

    Hence, the correct option is (B).

    Conclusion:

    These notes will help you in understanding the concepts related to Hydrocarbons in an easiest possible way as the concepts given here are presented in a systematic manner. It will also help you to tackle questions from any difficulty level. The solved questions given here will help you to get familiar with the difficulty level of the previous years’ papers. Students can also track their progress after attempting the questions given here.

    UPSEE: Important Questions & Study Notes for Bimolecules

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