The reaction: 


Which of the following compounds will be formed ?

The order of decreasing reactivity towards an electrophilic reagent, for the following:

i) Benzene
ii) Toluene
iii) Chlorobenzene
iv) Phenol

would be:

• (i) > (ii) > (iii) > (iv)

• (ii) > (iv) > (i) > (iii)

• (iv) > (iii) > (ii) >(i)

• (iv) > (iii) > (ii) >(i)

The major organic product in the reaction,

CH₃ -O- CH(CH₃)₂ + HI → Product is:

• CH₃OH + (CH₃)₂ + CHI

• ICH₂OCH(CH₃)₂

• CH₃O CI(CH₃)₂

• CH₃O CI(CH₃)₂

Which one is the most acidic compound?

Which one is the correct order of acidity?

• CH₂= CH₂> CH₃– CH = CH₂> CH₃– C ≡ CH > CH ≡ CH

• CH ≡  CH > CH₃– C ≡  CH > CH₂= CH₂> CH₃– CH₃

• CH ≡ CH > CH₂= CH₂> CH₃– C ≡  CH >CH₃– CH₃

• CH ≡ CH > CH₂= CH₂> CH₃– C ≡  CH >CH₃– CH₃

Identify A and predict the type of reaction

The heating of phenyl-methyl ethers with HI produces.

• Ethyl chlorides

• Iodobenzene

• Phenol

• Phenol

748.

The compound A on treatment with Na gives B, and with PCl₅ gives C. B and C react together to give diethyl ether. A, B and C are in the order

• C₂H₅OH, C₂H₆, C₂H₅Cl

• C₂H₅OH, C₂H₅Cl, C₂H₅ONa

• C₂H₅OH, C₂H₅ONa, C₂H₅Cl

• C₂H₅Cl, C₂H₆, C₂H₅OH

In the reaction,

The electrophile involved is

• Dichloromethyl cation (C⁺HCl₂)

• Formyl cation (C⁺HO)

• Dichlorocarbene (:CCl₂)

• Dichloromethyl anion (C^-HCl₂)

The product (P) is