Chemistry Preparation Haloarenes Online Exam Quiz
Chemistry Preparation Haloarenes GK Quiz. Question and Answers related to Chemistry Preparation Haloarenes. MCQ (Multiple Choice Questions with answers about Chemistry Preparation Haloarenes
What is the most suitable temperature for the formation of a diazonium salt from aniline?
Options
A : 0°C
B : 18°C
C : 37°C
D : 60°C
The ortho and para isomers formed by electrophilic substitution of arenes can be easily separated due to the large difference in their ________
Options
A : densities
B : solubilities
C : melting points
D : boiling points
Which of the following cannot be a catalyst in the electrophilic substitution of arenes?
Options
A : FeCl3
B : FeBr3
C : NH3
D : AlCl3
What is the by-product formed along with the haloarene at the end of Sandmeyer’s reaction?
Options
A : H2O
B : HCl
C : NO2
D : N2
In the iodination of benzene, which compound causes the reduction of iodobenzene back to benzene?
Options
A : Iodic acid
B : Hydrogen iodide
C : Nitric acid
D : Mercuric oxide
What happens when a solution of benzene diazonium bromide and an aqueous solution potassium iodide are shaken together?
Options
A : Iodobenzene is formed
B : Bromobenzene is formed
C : A dihaloarene is formed
D : No reaction
Identify the missing compound Y.
Options
A : NaBr
B : HBr
C : HCl
D : Cu2Br2
When excess chlorine is used in electrophilic substitution of toluene, which of the following dichloroarenes are formed?
Options
A : ortho and meta
B : ortho and para
C : meta and para
D : ortho, meta and para
Which of the following is a reagent used in the preparation of benzene diazonium chloride from aniline?
Options
A : Sodium hydroxide
B : Sodium chloride
C : Sodium nitrite
D : Sodium nitrate
Sandmeyer’s reaction can be used to prepare fluoroarenes.
Options
A : True
B : False
C :
D :
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