26 26 26 C 27 28 A 28 B 28 C 29 A 29 B 29 C 30 A 30 B 30 C 31 A 31 B 31 C 32 A 32 B 32 C 33 A 33 B 33 C 34 A 34 B 34 C 35 A 35 B 35 C 36 A 36 B 36 C 37 A 37 B 37 C

Lakhmir Singh & Manjit Kaur - Chemistry

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22 A 22 B 22 C 23 A 23 B 24 A 24 B 25 A 25 B 25 C 26 A 26 B 27 A 27 B 28 A 28 B 28 C 29 30 A 30 B 31 A 31 B 32 A 32 B 32 C 33 A 33 B 34 A 34 B 35 A 35 B 35 C 35 D

Long Answer Type Questions-Pg-222

36 A 36 B 36 C 36 D 37 A 37 B 37 C 37 D 38 A 38 B 38 C 38 D 39 A 39 B 39 C 39 D 39 E

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26 26 26 C 27 28 A 28 B 28 C 29 A 29 B 29 C 30 A 30 B 30 C 31 A 31 B 31 C 32 A 32 B 32 C 33 A 33 B 33 C 34 A 34 B 34 C 35 A 35 B 35 C 36 A 36 B 36 C 37 A 37 B 37 C

Long Answer Type Questions-Pg-241

38 A 38 B 38 C 38 D 38 E 39 A 39 B 39 C 39 D 39 E 40 A 40 B 40 C 40 D 40 E

Multiple Choice Questions (MCQs)-Pg-242

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Questions Based on High Order Thinking Skills (HOTS)-Pg-243

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22 23 24 A 24 B 24 C 25 A 25 B 25 C 26 A 26 B 26 C 27 28 29 A 29 B 30 31 A 31 B 31 C 32 A 32 B 32 C 32 D 33 A 33 B 34 A 34 B 35 A 35 B 35 C 36 A 36 B 36 C 37 A 37 B 37 C 38 A 38 B 38 C 39 A 39 B 39 C 40 A 40 B 41 A 41 B 41 C 42 A 42 B 42 C 43 A 43 B 43 C 44 A 44 B 44 C 45 A 45 B 45 C

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46 A 46 B 47 A 47 B 48 A 48 B 48 C 49 A 49 B 49 C

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Q. 27

(a) Give the names and structural formulae of the next two higher homologues of methane. (b) The molecular formula of a hydrocarbon is C₂H_5. Name its homologues series.
(c) Select the hydrocarbons which are members of the same homologues series. Give the name of each series. C₅H₁₀; C₃H₈; C₄H₁₀; C₇H₁₂; C₈H₁₆

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 4. Carbon and Its Compounds

Answer :

(a) The next two Higher homologues of methane are ethane and propane.

(c) Homologous series is a series of organic compounds having similar properties in which the successive members differ by a -CH₂ group.

Alkanes: C₃H₈; C₄H₁₀

Alkenes: C₅H₁₀; C₈H₁₆

Alkynes: C₇H₁₂

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PREVIOUSWrite the molecular formulae of the third and fifth members of homologues series of carbon compounds represented by the general formula CnH2n+2 NEXT(a) Give the molecular formula of one homologue of each of the following: (i) C3H6 (ii) C2H6 (iii) C2H2

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