The major organic compound formed by the reaction of 1,1,1-trichloroethane with silver powder is | Haloalkanes and Haloarenes

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 Multiple Choice QuestionsMultiple Choice Questions

1.

The reaction of propene with HOCl(Cl2+H2O) proceeds through the intermediate:

  • CH3−CH+−CH2−Cl

  • CH3−CH(OH)−C+H2

  • CH3−CHCl−C+H2

  • CH3−CHCl−C+H2

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2.

The product of the reaction given below is:

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3.

The synthesis of alkyl fluorides is best accomplished by

  • free radical fluorination

  • Sandmeyer's reaction

  • Finkelstein reaction

  • Finkelstein reaction

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4.

In SN2 reactions, the correct order of reactivity for the following compounds CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is

  • CH3Cl > (CH3)2CHCl >CH3CH2Cl > (CH3)3CCl

  • CH3Cl > CH3CH2Cl > (CH3)2CHCl >(CH3)3CCl

  • CH3CH2Cl > CH3Cl >(CH3)2CHCl >(CH3)3CCl

  • CH3CH2Cl > CH3Cl >(CH3)2CHCl >(CH3)3CCl

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5.

The major organic compound formed by the reaction of 1,1,1-trichloroethane with silver powder is

  • acetylene

  • ethene

  • 2-butyne

  • 2-butyne


C.

2-butyne

 The reaction is 

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6.

The order of stability of the following carbocations,

  • III>II>I

  • II> III>I

  • I>II>III

  • I>II>III

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7.

An unknown alcohol is treated with the “Lucas reagent” to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism

  • Secondary alcohol by SN1

  • Tertiary alcohol by SN1

  • Secondary alcohol by SN2

  • Secondary alcohol by SN2

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8.

What is DDT among the following

  • Greenhouse gas 

  • A fertilizer

  • Biodegradable pollutant

  • Biodegradable pollutant

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9.

2–Hexyne gives trans–2–Hexene on treatment with

  • Pt/H2

  • Li/NH3

  • Pd/BaSO4

  • Pd/BaSO4

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10.

In the given transformation, which of the following is the most appropriate reagent?

  • NH2NH2,O-H

  • Zn − Hg/HCl

  • Na,Liq.NH3

  • Na,Liq.NH3

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