Description : Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light
Last Answer : Concentrated H2SO4
Description : What is the melting point of FeCl3 F?
Last Answer : The melting point of ferric chloride is 307.6 d. She. Or 585.68 d. Fahrenheit. (Approximately)
Description : Alcoholic OH) group can be identified by : (1) Tolien's Reagent Test (2) Esterification Test (3) FeCl3 Test (4) Ozonolysis Reaction
Last Answer : (3) FeCl3 Test Explanation: As phenol is an aromatic alcohol, so FeCl3 test is a test for alcohol and esterificaton test is also a test for alcohol. The ferric chloride test is used to determine the presence or absence of phenols in a given sample (for instance natural phenols in a plant extract).
Description : What happens when freshly precipitated Fe (OH)3 is shaken with a little amount of dilute solution of FeCl3 ?
Last Answer : Ans. It causes peptization leading to the formation of a positively charged sol of Fe (OH)3
Description : Acetophenone reacts with Br2 in the presence of FeCl3 to form : (a) m-Bromoacetophenone (b) m-Dibromobenzene (c) o- + p-Bromoacetophenone (d) p-Dibromobenzene
Last Answer : m-Bromoacetophenone
Description : When phenol is treated with neutral FeCl3 solution, it develops (a) Violet color (b) Yellow color (c) Green color (d) Nothing happens
Last Answer : Violet color
Description : Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst
Last Answer : treating benzenediazonium chloride with KI
Description : Chlorobenzene can be prepared by treatment of aniline with (a) Cuprous chloride (b) Chlorine in the presence of UV light (c) Nitrous acid followed by treatment with CuCl (d) Chlorine in the presence of FeCl3
Last Answer : Nitrous acid followed by treatment with CuCl
Description : Nitrobenzene reacts with Br2 in the presence of FeCl3 to give (a) o-chloronitrobenzene (b) o-bromonitrobenzene (c) m-chloronitrobenzene (d) m-bromonitrobenzene
Last Answer : m-bromonitrobenzene
Description : Which of the following reagents is most suitable for preparing chlorobenzene from benzene? (a) Aqueous chlorine (b) Chlorine in the presence of ultraviolet light (c) Chlorine in acetic acid (d) Chlorine in the presence of FeCl3
Last Answer : Chlorine in the presence of FeCl3
Description : p-Nitrotoluene on treatment with chlorine in the presence of FeCl3 gives (a) m-Chlorotoluene (b) 2-Chloro-4-nitrotoluene (c) p-Chlorotoluene (d) 2-Nitro-4-chlorotoluene
Last Answer : 2-Chloro-4-nitrotoluene
Description : Benzene reacts with chlorine in the presence of FeCl3 catalyst to form (a) Hexachlorobenzene (b) Chlorobenzene (c) Hexachlorocyclohexane (d) Benzyl chloride
Last Answer : Chlorobenzene
Description : What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the ... by reacting with the Cl2 and thereby activates it toward attack by benzene's π electrons.
Last Answer : It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.
Description : Alcoholic (– OH) group can be identified by : (1) Tollen's Reagent Test (2) Esterification Test (3) FeCl3 Test (4) Ozonolysis Reaction
Last Answer : FeCl3 Test