Questions
1
Phenolphthalein is obtained by heating phenol with conc. H2SO4 and which of the following reactant?
Answer: Phthalic anhydride
2
Salicylaldehyde can be prepared from which of the following reactants?
Answer: Phenol, chloroform and sodium hydroxide
3
When phenol is treated with excess of bromine water, it gives which of the following product?
Answer: 2,4,6-tribromophenol
4
Phenol reacts with bromine in carbon disulphate at low temperature to give which of the following product?
Answer: o-and p-bromophenol
5
Bromine reacts with phenol and decolorize orange color and turns it to which of the colored precipitate?
Answer: white precipitate
6
Which of the following regents may be used to distinguish between phenol and benzoic acid?
Answer:Neutral FeCl3
7
What is the major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide?
Answer: Salicylic acid
8
Picric acid is formed when phenol react with which of the following reactant?
Answer: Nitric acid
9
Bakelite is formed when phenol react with which of the following reactant?
Answer: Formaldehyde
10
Phenol undergoes ionization to become more stable by reacting with which of the following chemical species?
Answer: negative ions
