The rate of S_N2 reaction is maximum when the solvent is

• CH₃OH

• H₂O

• DMSO

• Benzene

The IUPAC name of the compound  is 

• 1-bromo-1-chloro-4, 4'-bicyclobutane

• 4-( 4'-chlorocyclobutyl)-1-bromocyclobutane

• 3-bromo-3'-chloro-1, 1-bicyclobutane

• 4-(4'-bromocyclobutyl)-1-chlorocyclo butane

Which of the following compound is used as a refrigerant?

• CCl4

• CCl₂F₂

• CF₄

• Acetone

What is the chemical composition of Nicol prism?

• Al₂O₃

• CaSO₄

• CaCO₃

• Na₃AlF₆

Which of the following compound will give positive iodoform test?

• Isopropyl alcohol

• Propionaldehyde

• Ethylphenyl ketone

• Benzyl alcohol

The conversion of ethyl bromide using sodium iodide and dry acetone, this reaction is known as

• Swarts reaction

• Finkelstein reaction

• Sandmeyer reaction

• Stephen reaction

X and Y in the below reaction are .... and .... respectively

C₆H₅ - CO₂H + X $\stackrel{\mathrm{heat}}{\to }$ C₆H₅ - COCl $\underset{\mathrm{Quinoline}}{\overset{{\mathrm{H}}_2, \mathrm{Pd} / {\mathrm{BaSO}}_4}{\to }}$

• SOCl₂ and C₆H₅CHO

• (COCl)₂ and C₆H₅CH₃

• SOCl₂ and C₆H₅CH₃

• (COCl)₂ and C₆H₅CH₂OH

538.

The major product P formed in the following reaction is

• 

• 

• 

• 

The correct order of increasing reactivity of the following alkyl halides, CH₃CH₂CH(Br)CH₃

(I) CH₃CH₂CH(Br)CH₃

(II) (CH₃)₂CClCH₂CH₃

(III) CH₃CH₂CH₂Cl and

(IV) Towards S_N2 displacement is

• I < II < III < IV

• III < I < IV < II

• III < I < II < IV

• II < IV < I < III

The product Y for the below reaction is