Organic Chemistry: Reactions, Polymers and Industrial Applications
Comprehensive organic chemistry quiz covering named reactions, dye chemistry, polymer synthesis (nylons, resins, polyethers), and natural compounds for engineering entrance exam preparation
Questions
Pimelic acid is treated with acetic anhydride at 300oC to give
- cyclohexanone
- cyclopentanone
- glutaric anhydride
- succenic anhydride
- formic acid
Which of the following compounds belongs to Leuco dyes?
- Crystal violet lactone
- Magenta dyes
- Methylene blue
- Methyl blue
- Egyptean blue
Cumene hydroperoxide are decomposed by sulphuric acid to give
- anisole
- phenyl acetate
- benzalaniline
- cumene
- phenol
Koroseal is also known as
- vinyl chloride
- acrylonitrile
- vinylidine chloride
- tetrafluoroethylene
- None of these
Quinoline dyes belong to
- cyanines
- proflavine
- fluorescein
- uranine
- para red
1, 4 benzaquinone is prepared by the oxidation of the di isopropylbenzene. Which of the following rearrangement shows the reaction?
- Hock rearrangement
- Theile reaction
- Wohl-Aue reaction
- Elbs reaction
- Options (3) and (4)
The oxidation of aniline in the presence of hydrogen peroxide gives
- oil of mirbane
- cabowax
- natalite
- argan oil
- oil of amber
When Acetylene is added to arsenic chloride in the presence of AlCl3 and Cu2Cl2, which of the following products is formed?
- Lewisite
- Westron
- Acetaldehydes
- Glyoxal
- Oxalic acid
When benzaldeyhydes are refluxed in the presence of alcoholic KCN, it gives
- benzoin
- cinnamic acid
- cinnamaldehydes
- hydrobenzoin
- Both 2 and 3
Which of the following compounds play an important role in the manufacture of photographic rubber?
- Aniline
- Toluylene red
- Chloranile
- Hydroquinone
- Both the options (1) and (2)
The condensation of hexamethylenediamine and 1, 10 decandioic acid gives
- nylon 6, 6
- nylon 6, 10
- urethane
- nylon 6
- prepolymer
Caffeic acid is found in
- potatoes
- peanuts
- eucalyptus bark
- Apple
- Both 1 and 2 correct
Novolak resin is formed
- by the condensation of hexamethylenediamine and 1, 10 decandioic acid
- when isocyanate reacts with alcohol
- by heating excess of phenol with formaldehydes (P/F ratio nearly 1.25) in the presence of acid catalyst
- by the interaction of phenol with excess formaldehydes (P/F ratio nearly 0.8)
- when urea is heated at 300oC and 100 atmospheric pressure
Carbowax is prepared by which of the following methods?
- When para-nitroso N-N dimethylaniline is decomposed by caustic soda.
- When dimethylene amine hydrochloride reacts with NaOH.
- When thermal decomposition of hexamethyl ammonium hydroxide takes place.
- When dimethyl amine reacts with nitrous acid.
- When the ethylene oxide is polymerised.
Which of the following statements is/are incorrect about phloretin?
- Phloretin is obtained from apple leaves.
- Phloretin inhibits the transportation of glucose into the cell by SGLT1 and SGLT2.
- Phloretin inhibits glucose transportation in large intestine.
- Phloretin inhibits urea transport.
- Both 1 and 2