Objective Questions

Questions (2006)

#	Question	Topic	Actions
301	Catalytic hydrogenation of 3-methyl-1-butene gives :	Practice Questions	View
302	Which of the following alkenes gives only acetic acid on oxidation with hot con…	Practice Questions	View
303	Which of the following compounds will give only acetaldehyde on ozonolysis?	Practice Questions	View
304	Which of the following alkenes will give a mixture of acetone and formaldehyde …	Practice Questions	View
305	Which of the following alkenes will give a mixture of acetone and acetaldehyde …	Practice Questions	View
306	A hydrocarbon, C6H12, on ozonolysis gives only one product which does not give …	Practice Questions	View
307	Combustion of an alkene with sufficient oxygen will produce	Practice Questions	View
308	Which of the following are correct statements concerning unsaturated hydrocarbo…	Practice Questions	View
309	How many electrons are involved in a carbon-carbon double bond?	Practice Questions	View
310	Which of the following statements about ethene, C2H4, is incorrect?	Practice Questions	View
311	Which of the following statements about propene, CH3CH=CH2, is correct?	Practice Questions	View
312	Which of the following is the most stable alkene?	Practice Questions	View
313	Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the …	Practice Questions	View
314	What is the major product from the acid-catalyzed hydration of 2-methyl-2-pente…	Practice Questions	View
315	1,2-Butadiene has	Practice Questions	View
316	How many σ (sigma) bonds are there in CH2=CH—CH=CH2?	Practice Questions	View
317	Propadiene, CH2=C=CH2, is	Practice Questions	View
318	Which of the following molecular formulas will correspond to an alkene with two…	Practice Questions	View
319	What descriptive term is applied to the type of diene represented by 1,5-octadi…	Practice Questions	View
320	What descriptive term is applied to the type of diene represented by 2,4-hexadi…	Practice Questions	View
321	Which of the following statements are correct concerning delocalized electrons?	Practice Questions	View
322	What is the hybridization of the central carbon of allene (1,2-propadiene)?	Practice Questions	View
323	What compound results from the 1,4-addition of one equivalent of HBr to 1,3-but…	Practice Questions	View
324	Rank the following dienes in order of increasing stability : trans-1,3-pentadie…	Practice Questions	View
325	A triple bond consists of	Practice Questions	View
326	The bond angles associated with the hybrid orbitals of a carbon involved in a t…	Practice Questions	View
327	How many electrons are involved in a carbon-carbon triple bond?	Practice Questions	View
328	Which of the following improperly describes the physical properties of an alkyn…	Practice Questions	View
329	Which of the following statements correctly describes the general reactivity of…	Practice Questions	View
330	Which of the following describes a triple bond?	Practice Questions	View
331	What two atomic orbitals or hybrid atomic orbitals overlap to form the carbon-c…	Practice Questions	View
332	Which of the following statements is not true about propyne, HC–C≡CH3?	Practice Questions	View
333	How many distinct terminal alkynes exist with a molecular formula of C5H8?	Practice Questions	View
334	How many distinct internal alkynes exist with a molecular formula of C6H10?	Practice Questions	View
335	Which is the correct order of decreasing acidity in the following compounds? A.…	Practice Questions	View
336	Which of the following compounds is the major product when 1-hexyne is treated …	Practice Questions	View
337	The reagent needed to convert 2-butyne to cis-2-butene is :	Practice Questions	View
338	Among the compounds water, 1-butyne, 2-butyne, and ethane, which are stronger a…	Practice Questions	View
339	What is the product when 3-heptyne reacts with the Lindlar catalyst?	Practice Questions	View
340	In the addition of hydrogen bromide to alkynes, which of the following species …	Practice Questions	View
341	Starting with 2-butene, which of the following is the best method for preparing…	Practice Questions	View
342	Which of the following hydrocarbons has acidic hydrogens?	Practice Questions	View
343	Lindlar's catalyst is	Practice Questions	View
344	The higher reactivity of an alkene or alkyne, as compared to an alkane, is due …	Practice Questions	View
345	Which of the following statements about alkenes and alkynes is correct?	Practice Questions	View
346	Which of the following sequences regarding acid-strength is correct?	Practice Questions	View
347	1,2-Dichloroethane reacts with excess of NaNH2 to form	Practice Questions	View
348	Propyne is formed by	Practice Questions	View
349	Which of the following compounds on hydrolysis gives acetylene?	Practice Questions	View
350	Which of the following compounds on hydrolysis gives propyne?	Practice Questions	View
351	Which one of the following compounds will (a) decolorizes dilute cold KMnO4 ; (…	Practice Questions	View
352	Ethylene and acetylene can be distinguished by using	Practice Questions	View
353	1-Butyne can be distinguished from 2-butyne by using	Practice Questions	View
354	1-Butyne reacts with	Practice Questions	View
355	Propyne can be converted to propene by using	Practice Questions	View
356	2-Butyne undergoes catalytic hydrogenation in the presence of Lindlar's catalys…	Practice Questions	View
357	Addition of two moles of HCl to propyne gives :	Practice Questions	View
358	Propyne reacts with aqueous H2SO4 in the presence of HgSO4 to form	Practice Questions	View
359	Acetylene reacts with water in the presence of sulfuric acid and mercuric sulfa…	Practice Questions	View
360	Which of the following compounds will react with ammoniacal silver nitrate?	Practice Questions	View
361	Which of the following compounds does not react with ammoniacal AgNO3 solution?	Practice Questions	View
362	Which of the following compounds reacts with ammoniacal cuprous chloride to giv…	Practice Questions	View
363	Ozonolysis of 2-butyne gives	Practice Questions	View
364	Which alkyne yields propanoic acid as the only product upon treatment with ozon…	Practice Questions	View
365	When acetylene is passed through hot iron tube at 400°C, it gives	Practice Questions	View
366	When propyne is passed through hot iron tube at 400°C, it gives	Practice Questions	View
367	The monomer for Neoprene is	Practice Questions	View
368	A compound, C4H6, reacts with bromine and forms a white precipitate with ammoni…	Practice Questions	View
369	Which of the following correctly ranks the cycloalkanes in order of increasing …	Practice Questions	View
370	Which of the following has two equatorial alkyl substituents in its most stable…	Practice Questions	View
371	Which one of the following is not a metal catalyst for the hydrogenation of an …	Practice Questions	View
372	What is(are) the product(s) in the Pd-catalyzed hydrogenation of 1,2-dimethylcy…	Practice Questions	View
373	Which of the following is not a possible reaction of a carbocation?	Practice Questions	View
374	Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chl…	Practice Questions	View
375	Predict which of the following alkenes reacts the fastest with HCl?	Practice Questions	View
376	The hydroboration-oxidation reaction can be characterized as the to an alkene.	Practice Questions	View
377	2-Bromobutane reacts alcoholic KOH to mainly give	Practice Questions	View
378	A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One…	Practice Questions	View
379	The reaction of 1-butene with bromine, Br2, in aqueous solution gives primarily…	Practice Questions	View
380	Which brief statement most accurately describes why alkenes react the way they …	Practice Questions	View
381	Which of the following poisonous gas is formed when chloroform is exposed to li…	Practice Questions	View
382	Freon-12, CCl2F2, is used as a	Practice Questions	View
383	Which of the following compounds has been suggested as causing depletion of the…	Practice Questions	View
384	Which of the following reagents cannot be used to prepare an alkyl chloride fro…	Practice Questions	View
385	2-Propanol reacts with KBr and concentrated H2SO4 to give	Practice Questions	View
386	The best way to prepare 1,2-Dibromoethane is to treat :	Practice Questions	View
387	Alkyl halides undergo	Practice Questions	View
388	n-Propyl iodide reacts with sodium ethoxide to give :	Practice Questions	View
389	1-Bromobutane reacts with alcoholic KOH to mainly give	Practice Questions	View
390	Isopropyl bromide reacts with alcoholic KOH to give	Practice Questions	View
391	2,2-Dichloropropane reacts with aqueous KOH to give	Practice Questions	View
392	1,1-Dichloropropane reacts with aqueous KOH to give	Practice Questions	View
393	Which of the following compounds will not give a white precipitate with alcohol…	Practice Questions	View
394	Which of the following compounds will give a white precipitate with alcoholic A…	Practice Questions	View
395	Carbylamine test involves heating a mixture of	Practice Questions	View
396	When chloroform is heated with aqueous NaOH, it gives	Practice Questions	View
397	Which alkyl halides react most readily by nucleophilic substitution?	Practice Questions	View
398	Which of the following factors influence whether a reaction will proceed by an …	Practice Questions	View
399	Which compound reacts most rapidly by an SN1 mechanism?	Practice Questions	View
400	Which of the following compounds would react most rapidly in an SN2 reaction?	Practice Questions	View

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Questions (2006)