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Alkenes



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Q1. Ethylene on reaction with bromine forms which among the following product?

(a) BrH2C-CH2Br
(b) BrH2C=CH2Br
(c) Br2HC=CHBr2
(d) Br2HC-CHBr2

Q2. 4-chlorobut-1-ene is the name of which among the following alkenes?

(a) CH2Cl-CH2=CH-CH2
(b) CH2Cl-CH2-CH-CH2
(c) CH2Cl=CH2-CH=CH2
(d) CH2Cl-CH2-CH=CH2

Q3. Which among the following alkenes is used in the manufacturing of plastics?

(a) Butadiene
(b) 1,2-butadiene
(c) 1,3-butadiene
(d) 2-butadiene

Q4. Which among the following is not colourless?

(a) Methene
(b) Ethene
(c) Propene
(d) Butene

Q5. Identify the one which shows E-Z mechanism?

(a) 3-methylpent-2-ene
(b) 2-methylpent-2-ene
(c) Methyl-3-pent-2-ene
(d) 2,3-methylpentene

Q6. Identify the incorrect statement regarding the synthesis of alkenes.

(a) Cracking of a hydrocarbon yields alkenes
(b) The reactions are exothermic
(c) Zeolite catalyst helps in the synthesis of alkenes
(d) The synthesis of alkenes is otherwise known as reforming

Q7. Identify the addition reaction which is not undergone by the alkenes?

(a) Mercuration
(b) Oxymercuration
(c) Hydroboration
(d) Halogenation

Q8. Select the incorrect statement regarding alkenes.

(a) In alkenes, the carbons are connected by pi bonds
(b) Alkenes have almost same physical properties as that of the alkanes
(c) Alkenes are less reactive than alkanes
(d) Alkenes undergo polymerization reaction

Q9. Which among these is not a structural isomer of the compound C4H8?

(a) But-1-ene
(b) But-2-ene
(c) But-3-ene
(d) 2-methylpropene

Q10. In Alkenes the Carbon atoms are connected to each other by a ___________

(a) Single bond
(b) Double bond
(c) Triple bond
(d) Not connected


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416 views

Iodoethane Reacts With Sodium In The Presence Of Dry Ether The Product Is

Modified 235 Year Ago

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Iodoethane Reacts With Sodium In The Presence Of Dry Ether The Product Is

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Sample Of 2, 3-dibromo-methylpentane Is Heated With Zinc Dust.The Resulting Product Is Isolated And Heated With HI In The Presence Of Phosphorus. Indicate Which Is The Structure That Represent The

Modified 235 Year Ago

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Sample Of 2, 3-dibromo-methylpentane Is Heated With Zinc Dust.The Resulting Product Is Isolated And Heated With HI In The Presence Of Phosphorus. Indicate Which Is The Structure That Represent The

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327 views

Which Of The Following Statement Is/are Not True For Ethane

Modified 235 Year Ago

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235 Year Ago

Which Of The Following Statement Is/are Not True For Ethane

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LPG Mainly Contains

Modified 5 Year Ago

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LPG Mainly Contains

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Liquid Hydrocarbons Can Be Converted To A Mixture Of Gaseous Hydrocarbons By :

Modified 5 Year Ago

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Liquid Hydrocarbons Can Be Converted To A Mixture Of Gaseous Hydrocarbons By :

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287 views

Which Of The Following Is Not Formed By The Reaction Of CL2 On CH4 In Sunlight

Modified 235 Year Ago

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235 Year Ago

Which Of The Following Is Not Formed By The Reaction Of CL2 On CH4 In Sunlight

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