UPSEE: Important Questions and Study notes for 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:

Ozonolysis: Alkene Reactions

UPSEE: Important Questions and Preparation Tips – States of Matter

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:

(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:

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:

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:

(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:

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:

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