Chemistry Alcohols Phenols 4 Online Exam Quiz
Chemistry Alcohols Phenols 4 GK Quiz. Question and Answers related to Chemistry Alcohols Phenols 4. MCQ (Multiple Choice Questions with answers about Chemistry Alcohols Phenols 4
Lucas test was conducted on three compounds A, B and C. Compounds A and B showed turbidity at room temperature, but compound C became turbid only after heating. Which of the compounds has a tertiary structure?
Options
A : A
B : A and B
C : C
D : Cannot be determined
Which of the following oxidising agents is used to obtain carboxylic acids directly from alcohols?
Options
A : Acidified KMnO4
B : Aqueous KMnO4
C : Alkaline KMnO4
D : Anhydrous CrO3
Which compound can covert phenol back to benzene?
Options
A : CrO3
B : Zinc dust
C : Pyridine
D : Strong acid
Ortho and para isomers of nitrophenol can be separated by ________ distillation.
Options
A : fractional
B : steam
C : vacuum
D : zone
The oxidation of alcohol involves the cleavage of _____ bonds.
Options
A : O-H
B : C-H
C : O-H and C-H
D : Hydrogen
Which of the following compounds gives a ketone when its vapours are passes over heated copper at 573K?
Options
A : Propan-1-ol
B : Propan-2-ol
C : 2-Methylpropan-1-ol
D : 2-Methylpropan-2-ol
What is the final major product of Reimer-Tiemann reaction?
Options
A : Salicylic acid
B : o-Salicylaldehyde
C : m-Salicylaldehyde
D : p-Salicylaldehyde
Which of the following is incorrect regarding Kolbe’s reaction?
Options
A : The final product is Salicylic acid
B : CO2 acts as an electrophile
C : Acidification of phenol leads to formation of main product
D : Phenoxide ion undergoes electrophilic attack
In the presence of air, phenols slowly start to form dark coloured mixtures.
Options
A : True
B : False
C :
D :
What is formed when phenol is reacted with bromine water?
Options
A : White precipitate
B : Colourless gas
C : Brown liquid
D : No reaction
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