Chemistry : Alcohols, Phenols and Ethers

Phenol is bifunctional compound because

• It is acidic and contain -OH

• It reacts with Na to give phenoxide

• It reacts with both Na and Zn to give phenoxide and benzene respectively

• Both (a) and (c)

Which of the following has lowest boiling point?

• p -nitrophenol

• m -nitrophenol

• o-nitrophenol

• Phenol

One mole of an organic compound A with the formula C₃H₈O reacts completely with two moles of HI to form X and Y. When Y is boiled with aqueous alkali, it forms Z . Z answers the iodoform test. The compound A is

• propan -2- ol

• propan - 1- ol

• ethoxyethane

• methoxyethane

What are the organic products formed in the following reaction?

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{COO}-{\mathrm{CH}}_3 \underset{\left(\mathrm{ii}\right){\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{i}\right) {\mathrm{LiAlH}}_4}{\to }}$

• ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{COOH} \mathrm{and} {\mathrm{CH}}_4$

• ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_2-\mathrm{OH} \mathrm{and} {\mathrm{CH}}_4$

• ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_3 \mathrm{and} {\mathrm{CH}}_3-\mathrm{OH}$

• ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_2-\mathrm{OH} \mathrm{and} {\mathrm{CH}}_3-\mathrm{OH}$

The main product (P) is

• C₆H₅OC₂H₅

• C₂H₅OC₂H₅

• C₆H₅OC₆H₅

• C₆H₅.I

Which of the following compound (s) will give butanone on oxidation with alkaline KMnO₄ solution?

• Butan-1-ol

• Butan-2-ol

• Both (a) and (b)

• None of the above

The order of reactivity of the following alcohols is

• 1 > 2 > 3 > 4

• 1 > 3 > 2 > 4

• 4 > 3 > 2 > 1

• 4 > 3 > 1 > 2

The final product (IV) in the sequence of reactions

• ${\mathrm{CH}}_3-\left({\mathrm{CH}}_3\right){\mathrm{CHOCH}}_2{\mathrm{CH}}_2\mathrm{OH}$

• ${\mathrm{CH}}_3-\left({\mathrm{CH}}_3\right){\mathrm{CHCH}}_2{\mathrm{CH}}_2\mathrm{Br}$

• ${\mathrm{CH}}_3-\mathrm{CH}\left({\mathrm{CH}}_3\right)-{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}$

• ${\mathrm{CH}}_3-\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{OCH}}_3{\mathrm{CH}}_2$

$\mathrm{Ph}-\mathrm{C}\equiv \mathrm{C}-{\mathrm{CH}}_3 \stackrel{{\mathrm{Hg}}^{2+}/{\mathrm{H}}^{+}}{\to } \mathrm{A},$

What will be the order of reactivity of the following carbonyl compounds with Grignard's reagent?

• I > II > III >IV

• IV> III > II >I

• II> I> IV >III

• III> II> I >IV