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
  

The product of the reaction given below is:

The synthesis of alkyl fluorides is best accomplished by

• free radical fluorination

• Sandmeyer's reaction

• Finkelstein reaction

• Finkelstein reaction

In S_N2 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

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

• acetylene

• ethene

• 2-butyne

• 2-butyne

The order of stability of the following carbocations,

• III>II>I

• II> III>I

• I>II>III

• I>II>III

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 S_N1

• Tertiary alcohol by S_N1

• Secondary alcohol by S_N2

• Secondary alcohol by S_N2

What is DDT among the following

• Greenhouse gas 

• A fertilizer

• Biodegradable pollutant

• Biodegradable pollutant

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

• Pt/H₂

• Li/NH₃

• Pd/BaSO₄

• Pd/BaSO₄

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