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Frank solutions for Class 10 Chemistry chapter 11 - Unsaturated Hydrocarbons

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Frank Class 10 Chemistry Part 2 - Shaalaa.com

Chapter 11: Unsaturated Hydrocarbons

Exercise

Frank solutions for Class 10 Chemistry Chapter 11 Exercise [Page 278]

Exercise | Q 1 | Page 278

The molecules of alkene family are represented by a general formula CnH2n.
Answer the following:
(i) What do n and 2n signify?
(ii) What is the name of alkene when n=4?
(iii) What is the molecular formula of the alkene, if there are six
hydrogen atoms in it?
(iv) Write the molecular and structural formula of the first member of
alkene family.
(v) Write the molecular formulae of lower and higher homologues of
an alkene which contains four carbon atoms.

Exercise | Q 2 | Page 278

How is ethylene prepared in laboratory? Give balanced equation and
procedure. How is the gas prepared and dried?

Exercise | Q 3 | Page 278

How would you convert:
(a) Ethene into 1, 2 - dibromoethane.
(b) Ethene to bromoethane

Exercise | Q 4 | Page 278

Write the physical properties of ethene.

Exercise | Q 5 | Page 278

Write the balanced equations to convert:
(a) Ethanol to ethene
(b) Ethene to ethanol

Exercise | Q 6 | Page 278

Hovv will you differentiate that vvhether the given gas is ethane or ethene?

Exercise | Q 7 | Page 278

What is hydrogenation? How hydrogenation of ethene occurs? Give one use of hydrogenation.

Exercise | Q 8 | Page 278

Give two equations to show the conversion of a unsaturated compound to
saturated compound.

Exercise | Q 9 | Page 278

What are addition reactions? Why ethene undergo addition reactions? Give
two examples.

Exercise | Q 10 | Page 278

Give three uses of ethene.

Exercise | Q 11 | Page 278

Write the observation and name of the product for the following
(i) When ethene is passed in bromine solution in CCl4.
(ii) When Baeyer's reagent reacts with ethene.

Chapter 11: Unsaturated Hydrocarbons

Exercise
Frank Class 10 Chemistry Part 2 - Shaalaa.com

Frank solutions for Class 10 Chemistry chapter 11 - Unsaturated Hydrocarbons

Frank solutions for Class 10 Chemistry chapter 11 (Unsaturated Hydrocarbons) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Frank Class 10 Chemistry Part 2 solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 10 Chemistry chapter 11 Unsaturated Hydrocarbons are Uses of Acetic Acid, Chemical Properties of Acetic Acid, Concept of Acetic Acid, Concept of Ethanol, Hydrocarbons - Alkynes, Hydrocarbons - Alkenes,, Hydrocarbons - Alkanes, Simple Nomenclature, Homologous Series, Structure of Compounds with Single, Double and Triple Bonds, Unique Nature of Carbon Atom, Concept of Organic Compounds.

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