Objective Questions

Questions (2006)

#	Question	Topic	Actions
901	Which of the following compounds will react with PCl5 least vigorously?	Practice Questions	View
902	Sodium phenoxide reacts with CO2 at 125°C under 5 atm pressure to give salicyli…	Practice Questions	View
903	Phenol reacts with excess bromine water to give	Practice Questions	View
904	Resorcinol on distillation with zinc dust gives	Practice Questions	View
905	Bakelite has the following characteristics	Practice Questions	View
906	Anisole is formed when phenol is treated with	Practice Questions	View
907	Anisole on heating with concentrated HI gives	Practice Questions	View
908	Which group forms the strongest H-bonds to water molecules?	Practice Questions	View
909	Rank the following molecules in decreasing order of boiling points :	Practice Questions	View
910	Rank the following compounds in order of increasing boiling point :	Practice Questions	View
911	Phenol is acidic because of	Practice Questions	View
912	Which of the following has the most acidic proton?	Practice Questions	View
913	Phenol is	Practice Questions	View
914	Which one is most acidic?	Practice Questions	View
915	Which molecule is the most acidic?	Practice Questions	View
916	Arrange the following compounds in order of increasing acidity :	Practice Questions	View
917	Phenols can be easily distinguished from alcohols because	Practice Questions	View
918	Benzoyl chloride reacts with hydrogen in the presence of palladium and barium s…	Practice Questions	View
919	Cinnamaldehyde is prepared by the treatment of :	Practice Questions	View
920	Benzaldehyde reacts with methylmagnesium iodide (followed by hydrolysis) to form	Practice Questions	View
921	Which of the following will undergo Aldol condensation?	Practice Questions	View
922	When benzaldehyde is heated with concentrated NaOH, it gives :	Practice Questions	View
923	Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at …	Practice Questions	View
924	Benzaldehyde reacts with a mixture of concentrated sulfuric acid and nitric aci…	Practice Questions	View
925	Acetophenone reacts with Br2 in the presence of FeCl3 to form :	Practice Questions	View
926	Which of the following statements is NOT correct :	Practice Questions	View
927	Which separation technique is based on particle size and solubility, commonly u…	Isolation and Purification of Organic Compounds	View
928	Which technique is used to remove a liquid solvent by heating, leaving behind a…	Isolation and Purification of Organic Compounds	View
929	Distillation separates compounds based on differences in which physical propert…	Isolation and Purification of Organic Compounds	View
930	Which type of distillation is used when the boiling points of the liquids in a …	Isolation and Purification of Organic Compounds	View
931	In steam distillation, why do the liquids boil at a lower temperature than thei…	Isolation and Purification of Organic Compounds	View
932	Steam distillation is particularly useful for isolating which type of compounds…	Isolation and Purification of Organic Compounds	View
933	Which separation technique is based on the differential solubility of compounds…	Isolation and Purification of Organic Compounds	View
934	Which of the following is NOT a common solvent used in liquid-liquid extraction?	Isolation and Purification of Organic Compounds	View
935	In column chromatography, the stationary phase is typically which of the follow…	Isolation and Purification of Organic Compounds	View
936	In thin layer chromatography (TLC), what phenomenon causes the solvent to move …	Isolation and Purification of Organic Compounds	View
937	What does Rf stand for in chromatography?	Isolation and Purification of Organic Compounds	View
938	What is the formula for calculating Rf value in chromatography?	Isolation and Purification of Organic Compounds	View
939	In recrystallization, a suitable solvent should have which property?	Isolation and Purification of Organic Compounds	View
940	Which of the following is a common application of extraction in organic chemist…	Isolation and Purification of Organic Compounds	View
941	In a TLC experiment, if the solvent front travels 8 cm and a compound travels 2…	Isolation and Purification of Organic Compounds	View
942	n-Propylmagnesium bromide on treatment with carbon dioxide and further hydrolys…	Practice Questions	View
943	Which of the following compounds will react with methylmagnesium iodide followe…	Practice Questions	View
944	What is the IUPAC name for CH₃COCH₃?	Nomenclature and Functional Group Classes of Organic Compounds	View
945	What is the correct IUPAC name for the compound CH₃CH(NH₂)COOH?	Nomenclature and Functional Group Classes of Organic Compounds	View
946	What is the correct IUPAC name for the compound (CH₃)₂CH-CH₂-CH₂-OH?	Nomenclature and Functional Group Classes of Organic Compounds	View
947	What is the correct name for the compound with the formula CH₃-CH₂-CH₂-CHO?	Nomenclature and Functional Group Classes of Organic Compounds	View
948	What is the prefix for an amide when it is not the highest priority group?	Nomenclature and Functional Group Classes of Organic Compounds	View
949	What is the correct IUPAC name for the compound with the formula C₆H₅-CH₂-CH₂-O…	Nomenclature and Functional Group Classes of Organic Compounds	View
950	What is the correct name for the compound with two methyl groups attached to th…	Nomenclature and Functional Group Classes of Organic Compounds	View
951	What is the correct order of functional group priority (highest to lowest)?	Nomenclature and Functional Group Classes of Organic Compounds	View
952	What is the IUPAC name for the compound CH₃-CH(OH)-CH₂-CHO?	Nomenclature and Functional Group Classes of Organic Compounds	View
953	Common table sugar is	Practice Questions	View
954	What is the term used for isomers that are in rapid equilibrium?	Practice Questions	View
955	Aromatic hydrocarbons are also called :	Practice Questions	View
956	The C–C bond length in benzene is	Practice Questions	View
957	Characteristic reactions of aromatic hydrocarbons are initiated by	Practice Questions	View
958	Phenol on distillation with Zinc dust gives	Practice Questions	View
959	Oxidation of cumene with acidic K2Cr2O7 gives	Practice Questions	View
960	Oxidation of toluene with chromyl chloride gives benzaldehyde. This reaction is…	Practice Questions	View
961	What is the Aufbau principle?	Electronic Theory in Organic Chemistry	View
962	What does the Pauli Exclusion Principle state?	Electronic Theory in Organic Chemistry	View
963	What is Hund's rule?	Electronic Theory in Organic Chemistry	View
964	How many valence electrons does carbon (atomic number 6) have?	Electronic Theory in Organic Chemistry	View
965	What is the hybridization of the carbon atom in methane (CH₄)?	Electronic Theory in Organic Chemistry	View
966	What is the bond angle in an sp³ hybridized carbon?	Electronic Theory in Organic Chemistry	View
967	Which of the following substituents is an ortho and para director and ring deac…	Practice Questions	View
968	Which of the following will undergo substitution in the ortho and para position…	Practice Questions	View
969	What is the hybridization of the carbon atoms in ethene (C₂H₄, ethylene)?	Electronic Theory in Organic Chemistry	View
970	What is the bond angle in an sp² hybridized carbon?	Electronic Theory in Organic Chemistry	View
971	What is the hybridization of the carbon atoms in ethyne (C₂H₂, acetylene)?	Electronic Theory in Organic Chemistry	View
972	Why does carbon form four bonds even though its ground state configuration (1s²…	Electronic Theory in Organic Chemistry	View
973	In sp² hybridization, how many hybrid orbitals are formed and what is their geo…	Electronic Theory in Organic Chemistry	View
974	In sp hybridization, how many hybrid orbitals are formed and what is their geom…	Electronic Theory in Organic Chemistry	View
975	How many sigma (σ) and pi (π) bonds are present in a carbon-carbon double bond?	Electronic Theory in Organic Chemistry	View
976	How many sigma (σ) and pi (π) bonds are present in a carbon-carbon triple bond?	Electronic Theory in Organic Chemistry	View
977	Which of the following correctly orders C-C bond lengths from longest to shorte…	Electronic Theory in Organic Chemistry	View
978	Which of the following correctly orders C-C bond strength from strongest to wea…	Electronic Theory in Organic Chemistry	View
979	Why are sp hybridized carbons (alkynes) more electronegative than sp³ hybridize…	Electronic Theory in Organic Chemistry	View
980	Why is acetylene (HC≡CH) more acidic than ethylene (H₂C=CH₂) or ethane (CH₃CH₃)?	Electronic Theory in Organic Chemistry	View
981	What is the shape of methane (CH₄) according to VSEPR?	Electronic Theory in Organic Chemistry	View
982	What is the shape of water (H₂O) according to VSEPR?	Electronic Theory in Organic Chemistry	View
983	Which of the following is a sigma (σ) bond?	Electronic Theory in Organic Chemistry	View
984	Which of the following is a pi (π) bond?	Electronic Theory in Organic Chemistry	View
985	What does a Lewis structure show?	Electronic Theory in Organic Chemistry	View
986	What is the primary factor that determines the geometry of a molecule according…	Electronic Theory in Organic Chemistry	View
987	What is the bond angle in a perfect tetrahedral geometry?	Electronic Theory in Organic Chemistry	View
988	What is the geometry of a carbon with two attached atoms and zero lone pairs?	Electronic Theory in Organic Chemistry	View
989	Which hybrid orbitals are used by oxygen in water (H₂O)?	Electronic Theory in Organic Chemistry	View
990	Nitration of nitrobenzene with HNO3/H2SO4 gives :	Practice Questions	View
991	Which hybrid orbitals are used by nitrogen in ammonia (NH₃)?	Electronic Theory in Organic Chemistry	View
992	What is the relationship between s-character and bond strength?	Electronic Theory in Organic Chemistry	View
993	In VSEPR theory, how many electron domains are around the central atom in a tri…	Electronic Theory in Organic Chemistry	View
994	In VSEPR theory, how many electron domains are around the central atom in an oc…	Electronic Theory in Organic Chemistry	View
995	What are the three rules for writing electron configurations (order of filling)?	Electronic Theory in Organic Chemistry	View
996	What is the hybridization of the carbonyl carbon in aldehydes and ketones?	Carbonyl Compounds	View
997	Which of the following best describes the C=O bond compared to a C=C bond?	Carbonyl Compounds	View
998	What structural feature distinguishes an aldehyde from a ketone?	Carbonyl Compounds	View
999	What is the IUPAC suffix for an aldehyde?	Carbonyl Compounds	View
1000	What is the IUPAC suffix for a ketone?	Carbonyl Compounds	View

Page 10 of 21

Quick Actions

Practice

Learning Tools

Stats & Progress

Community

Questions (2006)