List I (Reactants) | List II (Product) |
---|---|
(A) Phenol, Zn/Δ | (I) Salicylaldehyde |
(B) Phenol, CHCl3, NaOH, HCl | (II) Salicylic acid |
(C) Phenol, CO2, NaOH, HCl | (III) Benzene |
(D) Phenol, Conc. HNO3 | (IV) Picric acid |
Choose the correct answer from the options given below :
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Alcohols react both as nucleophiles and electrophiles.
Reason R: Alcohols react with active metals such as sodium, potassium and aluminum to yield corresponding alkoxides and liberate hydrogen.
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: $$\mathrm{pK}_{\mathrm{a}}$$ value of phenol is 10.0 while that of ethanol is 15.9 .
Reason R: Ethanol is stronger acid than phenol.
In the light of the above statements, choose the correct answer from the options given below:
Phenol treated with chloroform in presence of sodium hydroxide, which further hydrolyzed in presence of an acid results