The conversion of O-acylated phenol in presence of AlCl₃ to C-acylated phenol is an example for this type of organic reaction

• addition reaction

• substitution reaction

• molecular rearrangement

• elimination reaction

Consider the following reaction-

C₂H₅Cl + AgCN $\stackrel{\mathrm{EtOH}/ {\mathrm{H}}_2\mathrm{O}}{\to }$ X (major)

Which one of the following statements is true for X ?

(I) It gives propionic acid on hydrolysis.

(II) It has an ester functional group.

(III) It has a nitrogen linked to ethyl carbon.

(IV) It has a cyanide group.

• IV

• III

• II

• I

The order of reactivity of phenol (I), nitrobenzene (II) and benzene (III) towards nitration is

• (III) > (I) > (II)

• (II) > (III) > (I)

• (I) > (III) > (II)

• (I) > (II) > (III)

The products formed, in the reaction of phenol with Br₂ dissolved in CS₂ at 0°C are

• o-bromo, m-bromo and p-bromophenols

• o-bromo and p-bromophenols

• 2,4,6-tribromo and 2,3,6-tribromophenols

• 2,4-dibromo and 2,6-dibromophenols

The structure of PCC is

• C₆H_{5$\stackrel{\oplus }{\mathrm{N}}$}HCrO₂${\mathrm{Cl}}^{⊝}$

• C₆H_{5$\stackrel{\oplus }{\mathrm{N}}$}HCrO₂${\mathrm{Cl}}^{⊝}$

• C₅H₅$\stackrel{\oplus }{\mathrm{N}}$HCrO₂${\mathrm{Cl}}^{⊝}$

• C₅H₅$\stackrel{\oplus }{\mathrm{N}}$HCrO₃${\mathrm{Cl}}^{⊝}$

Identify phenacetin from the following-

167.

C₂H₅OH + 4I₂ + 3Na₂CO₃ → X + HCOONa + 5NaI + 3CO₂ + 2H₂O

In the above reaction, 'X' is

• diodomethane

• triodomethane

• iodomethane

• tetrariodomethane

Phenol on oxidation in air gives

• quinone

• catechol

• resorcinol

• o-cresol

$\mathrm{X} \stackrel{\mathrm{Y}}{\to } \mathrm{Benzoquinone}$. Identify X and Y inthe above reaction.

• X	Y
  	Zn

• X	Y
  	Na2Cr2O7/ H2SO4

• X	Y
  	Na2Cr2O7/ H2SO4

• X	Y
  	Zn

${\mathrm{C}}_6{\mathrm{H}}_5- \mathrm{O}- {\mathrm{CH}}_2- {\mathrm{CH}}_3\stackrel{∆, \mathrm{HI}}{\to } \mathrm{Y}+ \mathrm{Z}$

Identify Y and Z inthe above reaction.

•  

  X	Y
  C6H5OH	H3CCH3

•  

  X	Y
  C2H5I	C6H5CHO

• X	Y
  C6H5I	H3CCH2OH

• X	Y
  C6H5OH	H3CCH2I