Objective Questions

Questions (2006)

#	Question	Topic	Actions
501	Ethers are kept in brown bottles because	Practice Questions	View
502	Ethers are stored in brown bottles. This is because on exposure to air and ligh…	Practice Questions	View
503	Ethers can be freed from peroxides by treatment with	Practice Questions	View
504	Which of the following statements is false?	Practice Questions	View
505	Ethers react with cold concentrated H2SO4 to form	Practice Questions	View
506	Which of the following reagents readily react with ethyl methyl ether?	Practice Questions	View
507	Diethyl ether reacts with sodium metal to give	Practice Questions	View
508	Diethyl ether on heating with excess concentrated HI gives	Practice Questions	View
509	Diethyl ether reacts with excess of hot concentrated HI to form	Practice Questions	View
510	Which is the best reagent to accomplish the following conversion? CH3CH2OCH2CH3…	Practice Questions	View
511	Which of the following pairs of compounds will not form hydrogen bonds with eac…	Practice Questions	View
512	The compound with the lowest boiling point is	Practice Questions	View
513	Which of the following would have the highest boiling point?	Practice Questions	View
514	Which of the following functional group series is ranked according to increasin…	Practice Questions	View
515	The following compounds have identical molecular weights. Which would have the …	Practice Questions	View
516	Cyclic ethers with three-membered ring are called	Practice Questions	View
517	Ethylene reacts with oxygen in the presence of silver catalyst at 300°C to form	Practice Questions	View
518	Ethylene oxide reacts with HBr to give	Practice Questions	View
519	Acid-catalyzed hydrolysis of ethylene oxide yields	Practice Questions	View
520	The product of the reaction of ethylene oxide with acidic methanol is	Practice Questions	View
521	Ethylene oxide reacts with ammonia to give	Practice Questions	View
522	Which of the following is closest to the C–O–C bond angle in CH3–O–CH3?	Practice Questions	View
523	When dipentyl ether is treated with excess HI, through what type of mechanism(s…	Practice Questions	View
524	Which of the following is not a property of thiols (RSH)?	Practice Questions	View
525	Thiols are alcohol analogs in which the oxygen has been replaced by sulfur (e.g…	Practice Questions	View
526	Which of the following has the lowest boiling point?	Practice Questions	View
527	Which of the following is least soluble in water?	Practice Questions	View
528	n-Butyl bromide reacts with NaSH to give	Practice Questions	View
529	The carbon atom of a carbonyl group is	Practice Questions	View
530	Which statement about the carbonyl group is NOT true?	Practice Questions	View
531	Acetone contains	Practice Questions	View
532	Formalin is	Practice Questions	View
533	Which of the following will have the highest boiling point?	Practice Questions	View
534	What property of low-molecular weight aldehydes and ketones accounts for the ma…	Practice Questions	View
535	Primary alcohols have boiling points that are the corresponding aldehydes.	Practice Questions	View
536	The melting points of aldehydes and ketones tend to :	Practice Questions	View
537	Which action best accounts for the solubility of aldehydes and ketones in water?	Practice Questions	View
538	Ketones are prepared by the oxidation of	Practice Questions	View
539	Which of the following do you consider to be suitable for obtaining acetone (CH…	Practice Questions	View
540	Cyclopentanol undergoes oxidation to give :	Practice Questions	View
541	Which statement about the carbonyl group of ketones and aldehydes is true? I. I…	Practice Questions	View
542	Acetone reacts with HCN to form a cyanohydrin. It is an example of	Practice Questions	View
543	Which of the following reagents will react readily with both aldehydes and keto…	Practice Questions	View
544	The reaction of ethanal with one equivalent of methanol and a trace of an acid …	Practice Questions	View
545	Acetone undergoes reduction with hydrazine in the presence of NaOH to form prop…	Practice Questions	View
546	Acetone undergoes reduction with zinc amalgam in HCl to form propane. This reac…	Practice Questions	View
547	Cannizzaro reaction is not given by	Practice Questions	View
548	When formaldehyde is treated with 50% NaOH solution, it undergoes	Practice Questions	View
549	The reduction of a ketone	Practice Questions	View
550	Reduction of acetaldehyde with H2/Ni gives	Practice Questions	View
551	On reduction with LiAlH4, which of the following compounds could yield an optic…	Practice Questions	View
552	The reduction of cyclohexanone with LiAlH4 (or NaBH4) will give	Practice Questions	View
553	Aldehydes undergo oxidation with KMnO4/H+ to give	Practice Questions	View
554	Oxidation of acetaldehyde with Na2Cr2O7/H+ gives	Practice Questions	View
555	A hydrazone will result from the reaction of hydrazine with	Practice Questions	View
556	Aldehydes can be distinguished from ketones by using	Practice Questions	View
557	The appearance of a silver mirror in Tollens' test indicates the presence of :	Practice Questions	View
558	Acetaldehyde on treatment with Tollens' reagent gives a precipitate of	Practice Questions	View
559	Which of the following compounds will give a positive test with Fehling's solut…	Practice Questions	View
560	Acetaldehyde on treatment with Fehling's solution gives a precipitate of	Practice Questions	View
561	Which of the following compounds will give an iodoform test?	Practice Questions	View
562	Which of the following compounds does not give a positive iodoform test :	Practice Questions	View
563	Which of the following compounds does not give iodoform test on treatment with …	Practice Questions	View
564	An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (A)…	Practice Questions	View
565	An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (B)…	Practice Questions	View
566	An unknown compound gave a positive Tollens' test. Treatment of the unknown wit…	Practice Questions	View
567	Which of the following characterizes the reactions of aldehydes and ketones?	Practice Questions	View
568	Why do aldehydes undergo nucleophilic addition reactions while esters undergo n…	Practice Questions	View
569	Which of the following reagents can be used to reduce acetaldehyde to ethyl alc…	Practice Questions	View
570	What is the hybridization of the carbonyl oxygen in carboxylic acids?	Practice Questions	View
571	What is the hybridization and geometry of the carbonyl carbon in carboxylic aci…	Practice Questions	View
572	Organic compound (A), C4H8O, does not react with sodium or PCl5. However, it re…	Practice Questions	View
573	Check the incorrect statement :	Practice Questions	View
574	In the conversion of wine to vinegar	Practice Questions	View
575	Vinegar is a	Practice Questions	View
576	In succinic acid, HOOC(CH2)nCOOH, n is equal to	Practice Questions	View
577	In adipic acid, HOOC(CH2)nCOOH, n is equal to	Practice Questions	View
578	The compound in which hydrogen bonding is not possible is	Practice Questions	View
579	Which compound has the highest boiling point?	Practice Questions	View
580	When carboxylic acids and dicarboxylic acids have similar molecular weights, ho…	Practice Questions	View
581	The greater acidity of carboxylic acids compared to alcohols arises primarily f…	Practice Questions	View
582	Which of the following statements is false about the acid-strength of acetic ac…	Practice Questions	View
583	Arrange the following compounds in order of decreasing acidity :	Practice Questions	View
584	Which of the following is the strongest acid in aqueous solution?	Practice Questions	View
585	Which of the following compounds is most acidic?	Practice Questions	View
586	Which of the following compounds is the strongest acid?	Practice Questions	View
587	Which of the following will give acetic acid on acid-hydrolysis?	Practice Questions	View
588	Propanenitrile undergoes acid-hydrolysis to give	Practice Questions	View
589	The characteristic reaction of carboxylic acids is :	Practice Questions	View
590	Which of the following compounds will react with Tollens' reagent to give metal…	Practice Questions	View
591	Which of the following compounds on treatment with NaHCO3 will liberate CO2?	Practice Questions	View
592	Which of the following reagents will convert acetic acid into acetyl chloride?	Practice Questions	View
593	Butyric acid reacts with PCl5 to give	Practice Questions	View
594	Acetic acid undergoes reduction with LiAlH4 to give	Practice Questions	View
595	Acetic acid reacts with methyl alcohol in the presence of an acid catalyst to g…	Practice Questions	View
596	Calcium acetate on strong heating gives	Practice Questions	View
597	Amides undergo hydrolysis under acidic conditions to give	Practice Questions	View
598	CH3(CH2)4COONa is the sodium salt of hexanoic acid. The water solubility of thi…	Practice Questions	View
599	Which of the following compounds has the lowest boiling point?	Practice Questions	View
600	Which of the following is the correct ranking in decreasing order of relative B…	Practice Questions	View

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Questions (2006)