Objective Questions

Questions (2006)

#	Question	Topic	Actions
801	Which of the following products is not derived from cellulose?	Practice Questions	View
802	Coal-tar is the main source of :	Practice Questions	View
803	Which of the following fractions of coal-tar distillation contains benzene?	Practice Questions	View
804	Which of the following fractions of coal-tar distillation contains naphthalene?	Practice Questions	View
805	The best name for the following compound is :	Practice Questions	View
806	The correct IUPAC name for the following compound is :	Practice Questions	View
807	Which of the following statements are correct concerning benzene?	Practice Questions	View
808	Which of the following statements is incorrect about benzene?	Practice Questions	View
809	Which of the following statements about benzene is correct?	Practice Questions	View
810	The delocalized π system in benzene is formed by a cyclic overlap of 6 orbitals.	Practice Questions	View
811	Aromatic molecules contain π electrons.	Practice Questions	View
812	Which of the structures below would be aromatic?	Practice Questions	View
813	Which of the following is aromatic?	Practice Questions	View
814	Which of the following is not a correct statement about the electrophilic subst…	Practice Questions	View
815	What purpose does FeCl3 serve in the electrophilic aromatic substitution reacti…	Practice Questions	View
816	Which of the following is not a correct statement concerning the Friedel-Crafts…	Practice Questions	View
817	What is the major organic product of the reaction between benzene and isobutyl …	Practice Questions	View
818	Which of the following statements are false about benzene?	Practice Questions	View
819	Which statement about the structure of benzene is not true?	Practice Questions	View
820	The carbon atoms in a benzene ring are :	Practice Questions	View
821	Which of the following statements is false about toluene?	Practice Questions	View
822	Which of the following reagents will react with methyl group rather than the be…	Practice Questions	View
823	Which of the following can be made by the action of CH3Cl on benzene in the pre…	Practice Questions	View
824	For reactions of ethylbenzene, the ethyl group is considered :	Practice Questions	View
825	Toluene reacts with bromine in the presence of uv light to give	Practice Questions	View
826	Toluene reacts with chlorine in the presence of AlCl3 to give	Practice Questions	View
827	Toluene undergoes oxidation to give	Practice Questions	View
828	Cresols on distillation with zinc dust gives	Practice Questions	View
829	DDT is prepared by the reaction of chlorobenzene with (in the presence of conc.…	Practice Questions	View
830	An organic compound (A) has a molecular weight 78 and an empirical formula CH. …	Practice Questions	View
831	Benzene undergoes substitution reaction more easily than addition reaction beca…	Practice Questions	View
832	Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to …	Practice Questions	View
833	Which of the following agents is used in order to make benzene react with conce…	Practice Questions	View
834	Which of the following agents is used in order to make benzene react with acety…	Practice Questions	View
835	Which of the following agents is used in order to make benzene react with bromi…	Practice Questions	View
836	In the Friedel-Craft acetylation of an aromatic ring, the role of the AlCl3 is …	Practice Questions	View
837	Consider the following reaction: The catalyst used to complete the above reacti…	Practice Questions	View
838	Benzene reacts with H2 at 150°C at 30 atm in the presence of Ni catalyst to give	Practice Questions	View
839	Benzene reacts with chlorine in the presence of FeCl3 catalyst to form	Practice Questions	View
840	Benzene reacts with acetic anhydride in the presence of AlCl3 to form	Practice Questions	View
841	Benzene reacts with benzoyl chloride in the presence of anhydrous aluminium chl…	Practice Questions	View
842	Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presenc…	Practice Questions	View
843	Benzene reacts with propene in the presence of H2SO4 catalyst to give	Practice Questions	View
844	Ozonolysis of benzene gives	Practice Questions	View
845	Gammexane is	Practice Questions	View
846	Which group is an activating substituent?	Practice Questions	View
847	Which of the following compounds reacts most rapidly with HNO3/H2SO4?	Practice Questions	View
848	In electrophilic aromatic substitution reactions a chlorine substituent .	Practice Questions	View
849	Phenol is an ortho-para director because the hydroxyl group :	Practice Questions	View
850	Compared to benzene, nitration of toluene takes place at	Practice Questions	View
851	Electron-withdrawing groups are meta directors because :	Practice Questions	View
852	Which of the following compounds undergoes nitration most readily?	Practice Questions	View
853	Which of the following compounds is most readily sulfonated?	Practice Questions	View
854	p-Nitrotoluene on treatment with chlorine in the presence of FeCl3 gives	Practice Questions	View
855	How many isomeric dichlorobenzenes are there?	Practice Questions	View
856	Which of the following compounds has maximum dipole moment?	Practice Questions	View
857	Which of the following reagents is most suitable for preparing chlorobenzene fr…	Practice Questions	View
858	Which of the reactions between the following pairs of reagents proceeds by a me…	Practice Questions	View
859	Aryl halides are less reactive towards nucleophilic substitution as compared to…	Practice Questions	View
860	Which of the following compounds would be unaffected by boiling aqueous NaOH?	Practice Questions	View
861	Hydrolysis of benzal chloride gives	Practice Questions	View
862	Hydrolysis of benzotrichloride gives	Practice Questions	View
863	Which reagent can be used to carry out the following conversion?	Practice Questions	View
864	The following compound is called?	Practice Questions	View
865	Which of the following reagents can be used to distinguish between chlorobenzen…	Practice Questions	View
866	Which of the following reagents can be used to distinguish between chlorobenzen…	Practice Questions	View
867	Which of the following statements is False/Incorrect about nitrobenzene?	Practice Questions	View
868	Which of the following compounds reacts least rapidly in electrophilic substitu…	Practice Questions	View
869	Nitrobenzene reacts with Br2 in the presence of FeCl3 to give	Practice Questions	View
870	Nitrobenzene undergoes reduction with zinc and KOH to give	Practice Questions	View
871	Reduction of p-nitrotoluene with Sn + HCl gives :	Practice Questions	View
872	Which of the following statements is false about aniline?	Practice Questions	View
873	Which of the following statements is correct about aniline?	Practice Questions	View
874	Which of the following statements is false about benzylamine?	Practice Questions	View
875	Aniline is prepared by	Practice Questions	View
876	Aniline reacts with bromine water to form	Practice Questions	View
877	Which of the following will give a precipitate with excess bromine water?	Practice Questions	View
878	Aniline reacts with nitrous acid at low temperatures to give	Practice Questions	View
879	When aniline is heated with chloroform and alcoholic KOH, the product is	Practice Questions	View
880	Aniline reacts with acetic anhydride to give :	Practice Questions	View
881	Aniline undergoes oxidation with Na2Cr2O7/H2SO4 to give	Practice Questions	View
882	Which of the following reagents does not react with aniline?	Practice Questions	View
883	Rank the following compounds in order of increasing base strength :	Practice Questions	View
884	Which of the following compounds is most basic?	Practice Questions	View
885	Which of the following is least basic?	Practice Questions	View
886	Which of the following compounds will be most soluble in water at room temperat…	Practice Questions	View
887	The diazonium salts are the reaction products of the reaction of nitrous acid w…	Practice Questions	View
888	Preparation of a diazonium salt from a primary aromatic amine is known as :	Practice Questions	View
889	Which of the following reagents is used to prepare benzenediazonium chloride fr…	Practice Questions	View
890	Which of the following are optimum temperature conditions for making benzenedia…	Practice Questions	View
891	Benzenediazonium chloride reacts with warm water to give	Practice Questions	View
892	Bromobenzene can be prepared by treating aniline with	Practice Questions	View
893	Chlorobenzene can be prepared by treatment of aniline with	Practice Questions	View
894	Iodobenzene can be prepared by	Practice Questions	View
895	Benzenediazonium chloride reacts with KI to form :	Practice Questions	View
896	Benzenediazonium chloride reacts with hypophosphorus acid to form :	Practice Questions	View
897	Benzenediazonium chloride reacts with phenol to form :	Practice Questions	View
898	Phenol is used	Practice Questions	View
899	Which of the following compounds is aspirin	Practice Questions	View
900	When phenol is treated with neutral FeCl3 solution, it develops	Practice Questions	View

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Questions (2006)