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

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

Aqueous 10% NaHCO₃ solution is used as a reagent for identifying 'A'. Which of the following compounds yield 'A' on hydrolysis?

• CH₃COOC₂H₅

• C₂H₅-COO-C₂H₅

• CH₃CHO

• CH₃CH₂OH

When a mixture of 1-hexanol and hexanoic acid in diethyl ether is shaken with an aqueous NaHCO₃ solution, then which of the following is right distribution?

• In ether	In sodium bicarbonate solution
  Sodium hexanoate	1- hexanol

• 1- hexanol

  Hexanoic acid

• 1- hexanol

  Sodium hexanoate

• Hexanoic acid

  1- hexanol

The correct order of increasing acidic strength is

• phenol < ethanol < chloroacetic acid < acetic acid

• ethanol < phenol < chloroacetic acid < acetic acid

• ethanol < phenol < acetic acid < chloroacetic acid

• chloroacetic acid < acetic acid < phenol < ethanol