Objective Questions

Questions (1999)

#	Question	Topic	Actions
1401	Esters can be formed by nucleophilic substitution reactions of :	Practice Questions	View
1402	The conversion is called :	Practice Questions	View
1403	Hydrolysis of an ester can be accomplished by :	Practice Questions	View
1404	Basic-hydrolysis of esters is called	Practice Questions	View
1405	Base-catalyzed condensation of two ester molecules to form an alcohol and β-ket…	Practice Questions	View
1406	Ethyl acetoacetate undergoes acid-hydrolysis with dilute HCl to form	Practice Questions	View
1407	The ethyl derivative of acetoacetic ester on basic-hydrolysis gives	Practice Questions	View
1408	Ethyl acetate on heating with sodium ethoxide gives	Practice Questions	View
1409	When ethyl acetoacetate is subjected to ketonic hydrolysis, the ketone obtained…	Practice Questions	View
1410	Ethyl acetoacetate reacts with phenylhydrazine to give	Practice Questions	View
1411	Keto-enol tautomerism is shown by	Practice Questions	View
1412	Fatty acids are	Practice Questions	View
1413	Sodium or potassium salts of fatty acids are called	Practice Questions	View
1414	Soap is	Practice Questions	View
1415	A wax is	Practice Questions	View
1416	Fats and oils are	Practice Questions	View
1417	Fats differ from waxes in that fats have :	Practice Questions	View
1418	Oleic acid is a fatty acid containing	Practice Questions	View
1419	Both stearic acid and linoleic acid have 18 carbons. Linoleic acid is unsaturat…	Practice Questions	View
1420	Liquid oils can be converted to solid fats by	Practice Questions	View
1421	Partial hydrogenation of vegetable oils in the presence of Ni catalyst at 200°C…	Practice Questions	View
1422	Alkaline hydrolysis of oils (or fats) is called :	Practice Questions	View
1423	Saponification of a fat	Practice Questions	View
1424	Which of the following compounds will not be classified as lipids?	Practice Questions	View
1425	Synthetic detergents can be represented by the following general formula	Practice Questions	View
1426	The degree of unsaturation of a fat can be determined by means of its	Practice Questions	View
1427	Which of the following statements is not true about fatty acids?	Practice Questions	View
1428	Which of the following best explains why the melting points of saturated fats i…	Practice Questions	View
1429	Which of the following terms best describes the compound below? CH3(CH2)12CO2H	Practice Questions	View
1430	Which of the following terms best describes the compound below? CH3(CH2)7CH=CH(…	Practice Questions	View
1431	Which of the following statements best describes the structure of waxes?	Practice Questions	View
1432	Which of the following terms best describes the compound below? CH3(CH2)26CO2CH…	Practice Questions	View
1433	Which of the following statements is not true about triacylglycerols?	Practice Questions	View
1434	Triglycerides which are solids or semisolids at room temperature are called .	Practice Questions	View
1435	Which of the following statements is not true about phospholipids?	Practice Questions	View
1436	The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of …	Practice Questions	View
1437	Triethylamine [(CH3CH2)3N] is a molecule in which the nitrogen atom is hybridiz…	Practice Questions	View
1438	The N–H bond in the ammonium ion, NH4+, is formed by the overlap of what two or…	Practice Questions	View
1439	What is the hybridization of the nitrogen atom in CH3NH2?	Practice Questions	View
1440	What is the hybridization of the carbon atom in CH3NH2?	Practice Questions	View
1441	What type of intermolecular interactions does (CH3CH2)2NH undergo?	Practice Questions	View
1442	Assuming roughly equivalent molecular weights, which of the following would hav…	Practice Questions	View
1443	Which of the following statements is false about primary amines?	Practice Questions	View
1444	Which of the following statements is false about secondary amines?	Practice Questions	View
1445	The hybridization of nitrogen in an amine is	Practice Questions	View
1446	A sample of pure amine molecules is found to possess no intermolecular H-bondin…	Practice Questions	View
1447	Which amine is NOT soluble in water?	Practice Questions	View
1448	Consider a 1°, 2° and 3° amine, all of equivalent molecular weight. Which amine…	Practice Questions	View
1449	Which compound has the highest boiling point? 1. CH3CH2CH3 2. CH3CH2OH 3. CH3CH…	Practice Questions	View
1450	Amines are generally classified as	Practice Questions	View
1451	Acetamide reacts with Br2/NaOH to give	Practice Questions	View
1452	Acetonitrile undergoes reduction with LiAlH4 to form :	Practice Questions	View
1453	Reduction of an imine will give an	Practice Questions	View
1454	Which of the following is most basic?	Practice Questions	View
1455	Alkyl halides react with ammonia in the presence of base to form :	Practice Questions	View
1456	The major product of the following reaction is :	Practice Questions	View
1457	Aliphatic primary amines react with cold nitrous acid to form	Practice Questions	View
1458	Which type of amine produces N2 when treated with HONO?	Practice Questions	View
1459	Methylamine reacts with nitrous acid to form	Practice Questions	View
1460	A nitrile can be made by dehydrating an amide. However, for this reaction to oc…	Practice Questions	View
1461	Which of the following amines react with nitrous acid to form nitrosoamine?	Practice Questions	View
1462	Which of the following does not react with acyl chlorides to form amides :	Practice Questions	View
1463	Hinsberg's reagent is	Practice Questions	View
1464	Which of the following compounds will dissolve in aqueous NaOH after undergoing…	Practice Questions	View
1465	Which of the following compounds does not react with acetyl chloride?	Practice Questions	View
1466	A primary amine can be identified by using	Practice Questions	View
1467	Carbylamine test is given by	Practice Questions	View
1468	Which of the following describes the side chain for Alanine?	Practice Questions	View
1469	Which of the following describes the side chain for Valine?	Practice Questions	View
1470	Which of the following describes the side chain of Leucine?	Practice Questions	View
1471	Which of the following amino acids has an aliphatic R group?	Practice Questions	View
1472	Which of the following amino acids has an aromatic R group?	Practice Questions	View
1473	Which of the following amino acids has a sulfur in the R group?	Practice Questions	View
1474	Which of the following amino acids has a heterocyclic R group?	Practice Questions	View
1475	The α-carbon of all the amino acids is a chirality center except for .	Practice Questions	View
1476	Which of the following is correct for an amino acid solution when it is in the …	Practice Questions	View
1477	When a disulfide linkage is formed, the compound containing this new linkage ha…	Practice Questions	View
1478	Which of the following structures can polypeptides have?	Practice Questions	View
1479	Which of the following is the first step in the determination of the primary st…	Practice Questions	View
1480	What are enzymes?	Practice Questions	View
1481	Which of the following may characterize the 'secondary structure' of proteins?	Practice Questions	View
1482	Which of the following is the 'quaternary structure' of proteins concerned with?	Practice Questions	View
1483	Which of the following protein structures does 'denaturation' destroy?	Practice Questions	View
1484	Which of the following are capable of denaturing proteins?	Practice Questions	View
1485	The monomeric units that make up peptides and protein polymers are .	Practice Questions	View
1486	A zwitterion is	Practice Questions	View
1487	A zwitterion has which of the following properties	Practice Questions	View
1488	An aqueous solution of glycine is neutral because of the formation of :	Practice Questions	View
1489	Which one of the following compounds form zwitterions?	Practice Questions	View
1490	The pH at which the amino acid shows no tendency to migrate when placed in an e…	Practice Questions	View
1491	The isoelectric point of a protein is	Practice Questions	View
1492	Which of the following reactions is suitable for the preparation of α-amino aci…	Practice Questions	View
1493	Glycine is	Practice Questions	View
1494	Glycine reacts with nitrous acid to form :	Practice Questions	View
1495	When glycine is heated, it forms	Practice Questions	View
1496	Glycine is a unique amino acid because it	Practice Questions	View
1497	Proteins are	Practice Questions	View
1498	The five elements present in most naturally occurring proteins are :	Practice Questions	View
1499	The nitrogen content of proteins can be quantitatively determined by	Practice Questions	View
1500	Which of the following is the main structural feature of proteins?	Practice Questions	View

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Questions (1999)