Organic Chemistry Mcqs
Our collections of Multiple choice questions and answers focuses on study of Organic Chemistry. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Organic Chemistry comprehensively.
2. Octane number can be improved by
Isomerization
Adding (C2H5)4 Pb
Adding (CH3)4 Pb
All
3. Hydro carbons which burn with smoky flame are called
Aliphatic
Alicyclic
Aromatic
Aldehyde
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4. Octane number 2 2 4-trimethyl pentane is
100
90
80
70
5. Propene can exhibit
Cis-trans isomerism
Geometric isomerism
Both a & b
None of the above
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6. Geometric isomerism is usually found in
Alkanes
Alkenes
Alkynes
Esters
7. Pentane and 2-methyl butance have the same
Boiling point
Melting point
Percentage composition
Structural formula
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8. Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have
Low melting points
Low vapour pressure
High boiling points
High electrical conductivity
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9. The first organic compound was synthesized in laboratory by
Wohler
Kolbe
Berzilius
Berthelot
10. According to vital force theory
Oorganic compounds can be synthesized from inorganic compounds
Organic compounds cannot be synthesized from inorganic compounds
Organic compounds can be synthesized by animals
Organic compounds can be synthesized by plants
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11. First organic compound synthesized in laboratory was
Tartaric acid
Ethyl alcohol
Methanol
Urea
12. A double bond consists of
Two sigma bonds
Two Pi bonds
One sigma and one Pi bonds
One sigma and two Pi bonds
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13. The property of carbon chain formation is called
Catenation
Hybridization
Polymerization
Solvation
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14. Chemical properties of first member of homologous series with respect to other members are
Same
Different
Depends upon number of C atoms
Depends upon number of H atoms
15. The organic compounds having very high molecular weight are called
Carboxylic acids
Ketones
Aldehydes
Polymers
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