Objective Questions

Questions (1999)

#	Question	Topic	Actions
1601	Which of the following reagents will react with methyl group rather than the be…	Practice Questions	View
1602	Which of the following can be made by the action of CH3Cl on benzene in the pre…	Practice Questions	View
1603	For reactions of ethylbenzene, the ethyl group is considered :	Practice Questions	View
1604	Toluene reacts with bromine in the presence of uv light to give	Practice Questions	View
1605	Toluene reacts with chlorine in the presence of AlCl3 to give	Practice Questions	View
1606	Toluene undergoes oxidation to give	Practice Questions	View
1607	Oxidation of cumene with acidic K2Cr2O7 gives	Practice Questions	View
1608	Oxidation of toluene with chromyl chloride gives benzaldehyde. This reaction is…	Practice Questions	View
1609	Cresols on distillation with zinc dust gives	Practice Questions	View
1610	An organic compound (A) has a molecular weight 78 and an empirical formula CH. …	Practice Questions	View
1611	Benzene undergoes substitution reaction more easily than addition reaction beca…	Practice Questions	View
1612	Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to …	Practice Questions	View
1613	Which of the following agents is used in order to make benzene react with conce…	Practice Questions	View
1614	Which of the following agents is used in order to make benzene react with acety…	Practice Questions	View
1615	Which of the following agents is used in order to make benzene react with bromi…	Practice Questions	View
1616	In the Friedel-Craft acetylation of an aromatic ring, the role of the AlCl3 is …	Practice Questions	View
1617	Consider the following reaction: The catalyst used to complete the above reacti…	Practice Questions	View
1618	Benzene reacts with H2 at 150°C at 30 atm in the presence of Ni catalyst to give	Practice Questions	View
1619	Benzene reacts with chlorine in the presence of FeCl3 catalyst to form	Practice Questions	View
1620	Benzene reacts with acetic anhydride in the presence of AlCl3 to form	Practice Questions	View
1621	Benzene reacts with benzoyl chloride in the presence of anhydrous aluminium chl…	Practice Questions	View
1622	Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presenc…	Practice Questions	View
1623	Benzene reacts with propene in the presence of H2SO4 catalyst to give	Practice Questions	View
1624	Ozonolysis of benzene gives	Practice Questions	View
1625	Gammexane is	Practice Questions	View
1626	Which group is an activating substituent?	Practice Questions	View
1627	Which of the following compounds reacts most rapidly with HNO3/H2SO4?	Practice Questions	View
1628	In electrophilic aromatic substitution reactions a chlorine substituent .	Practice Questions	View
1629	Which of the following substituents is an ortho and para director and ring deac…	Practice Questions	View
1630	Which of the following will undergo substitution in the ortho and para position…	Practice Questions	View
1631	Phenol is an ortho-para director because the hydroxyl group :	Practice Questions	View
1632	Compared to benzene, nitration of toluene takes place at	Practice Questions	View
1633	Electron-withdrawing groups are meta directors because :	Practice Questions	View
1634	Which of the following compounds undergoes nitration most readily?	Practice Questions	View
1635	Which of the following compounds is most readily sulfonated?	Practice Questions	View
1636	p-Nitrotoluene on treatment with chlorine in the presence of FeCl3 gives	Practice Questions	View
1637	How many isomeric dichlorobenzenes are there?	Practice Questions	View
1638	Which of the following compounds has maximum dipole moment?	Practice Questions	View
1639	Which of the following reagents is most suitable for preparing chlorobenzene fr…	Practice Questions	View
1640	Which of the reactions between the following pairs of reagents proceeds by a me…	Practice Questions	View
1641	Aryl halides are less reactive towards nucleophilic substitution as compared to…	Practice Questions	View
1642	Which of the following compounds would be unaffected by boiling aqueous NaOH?	Practice Questions	View
1643	Hydrolysis of benzal chloride gives	Practice Questions	View
1644	Hydrolysis of benzotrichloride gives	Practice Questions	View
1645	Which reagent can be used to carry out the following conversion?	Practice Questions	View
1646	The following compound is called?	Practice Questions	View
1647	DDT is prepared by the reaction of chlorobenzene with (in the presence of conc.…	Practice Questions	View
1648	Which of the following reagents can be used to distinguish between chlorobenzen…	Practice Questions	View
1649	Which of the following reagents can be used to distinguish between chlorobenzen…	Practice Questions	View
1650	Which of the following statements is False/Incorrect about nitrobenzene?	Practice Questions	View
1651	Which of the following compounds reacts least rapidly in electrophilic substitu…	Practice Questions	View
1652	Nitrobenzene reacts with Br2 in the presence of FeCl3 to give	Practice Questions	View
1653	Nitration of nitrobenzene with HNO3/H2SO4 gives :	Practice Questions	View
1654	Nitrobenzene undergoes reduction with zinc and KOH to give	Practice Questions	View
1655	Reduction of p-nitrotoluene with Sn + HCl gives :	Practice Questions	View
1656	Which of the following statements is false about aniline?	Practice Questions	View
1657	Which of the following statements is correct about aniline?	Practice Questions	View
1658	Which of the following statements is false about benzylamine?	Practice Questions	View
1659	Aniline is prepared by	Practice Questions	View
1660	Benzamide reacts with Br2 and KOH to give	Practice Questions	View
1661	When ammonia is added to an alkyl halide, in the presence of base :	Practice Questions	View
1662	Aniline reacts with bromine water to form	Practice Questions	View
1663	Which of the following will give a precipitate with excess bromine water?	Practice Questions	View
1664	Aniline reacts with nitrous acid at low temperatures to give	Practice Questions	View
1665	When aniline is heated with chloroform and alcoholic KOH, the product is	Practice Questions	View
1666	Aniline reacts with acetic anhydride to give :	Practice Questions	View
1667	Aniline undergoes oxidation with Na2Cr2O7/H2SO4 to give	Practice Questions	View
1668	Which of the following reagents does not react with aniline?	Practice Questions	View
1669	Rank the following compounds in order of increasing base strength :	Practice Questions	View
1670	Which of the following compounds is most basic?	Practice Questions	View
1671	Which of the following is least basic?	Practice Questions	View
1672	Which of the following compounds will be most soluble in water at room temperat…	Practice Questions	View
1673	The diazonium salts are the reaction products of the reaction of nitrous acid w…	Practice Questions	View
1674	Preparation of a diazonium salt from a primary aromatic amine is known as :	Practice Questions	View
1675	Which of the following reagents is used to prepare benzenediazonium chloride fr…	Practice Questions	View
1676	Which of the following are optimum temperature conditions for making benzenedia…	Practice Questions	View
1677	Benzenediazonium chloride reacts with warm water to give	Practice Questions	View
1678	Bromobenzene can be prepared by treating aniline with	Practice Questions	View
1679	Chlorobenzene can be prepared by treatment of aniline with	Practice Questions	View
1680	Iodobenzene can be prepared by	Practice Questions	View
1681	Benzenediazonium chloride reacts with KI to form :	Practice Questions	View
1682	Benzenediazonium chloride reacts with hypophosphorus acid to form :	Practice Questions	View
1683	Benzenediazonium chloride reacts with phenol to form :	Practice Questions	View
1684	Phenol is used	Practice Questions	View
1685	Which of the following compounds is aspirin	Practice Questions	View
1686	When phenol is treated with neutral FeCl3 solution, it develops	Practice Questions	View
1687	Which of the following compounds will react with PCl5 least vigorously?	Practice Questions	View
1688	Sodium phenoxide reacts with CO2 at 125°C under 5 atm pressure to give salicyli…	Practice Questions	View
1689	Phenol reacts with excess bromine water to give	Practice Questions	View
1690	Resorcinol on distillation with zinc dust gives	Practice Questions	View
1691	Bakelite has the following characteristics	Practice Questions	View
1692	Anisole is formed when phenol is treated with	Practice Questions	View
1693	Anisole on heating with concentrated HI gives	Practice Questions	View
1694	Which group forms the strongest H-bonds to water molecules?	Practice Questions	View
1695	Rank the following molecules in decreasing order of boiling points :	Practice Questions	View
1696	Rank the following compounds in order of increasing boiling point :	Practice Questions	View
1697	Phenol is acidic because of	Practice Questions	View
1698	Which of the following has the most acidic proton?	Practice Questions	View
1699	Phenol is	Practice Questions	View
1700	Which one is most acidic?	Practice Questions	View

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Questions (1999)