QUESTION 1 2 points Save Answer Which reagent would you react with an alkyne to produce...
QUESTION 5 Which of the following reductions of an alkyne is NOT correct? O A. 2-Pentyne + 2H2/Pt → pentane O B. 2-Pentyne + H2/Ni2B + Z-2-Pentene O C. 2-Pentyne + Li/NH3(1) ► 2-2-Pentene D. All of the above are correct. O E. None of the above is correct.
QuestIUIT Which reaction proceeds through a vinylic radical? (1) Hg catalyzed hydration of an alkyne ) Catalytic hydrogenation of an alkyne (3) Li / NH3 reduction of an alkyne (4) Treatment of an alkyne with strong base Question 2 -- / 1 Select the correct statement regarding the hydrogenation of 6-decyne: n The hydrogenation occurs with anti additon of hydrogen to the double bond Lindlar's catalyst typicaly will produce the fully saturated alkane product A cis alkene results in the...
QUESTION 5 10 points Save Answer Which of the following compounds would react most rapidly with a dilute aqueous solution of H2SO4? с. – о. o o ООООО o m
Question 3 Which reaction condition(s) would give the wanted product from the given reagent? CH2CH3 - CH2CH3 NaNH2 in NH3 Na in NH3 H2, and Lindlar's catalyst H2, Pd/C 1. BH3, THE 2. H202, NaOH (aq)
10 points Save Answer QUESTION 3 You have the same unknown compound in 2 test tubes. You add bromine to both, and keep one in the light and one in the dark? Both samples become colorless. What do you have? alkyne alkene alkane benzene Save All Answers Save and Submit Click Save and Submit to save and submit. Click Save All Answers to sve oll ansoerss MacBook Pro & 7 5 6 P T K D G J н O...
QUESTION 2 1. Which one of the following statements is true? (HX is either HCl or HBr) Alkynes undergo electrophilic substitution reactions with HX to give halogenated alkenes. Adding an excess of HX to an alkyne gftens times will stop the reaction at the alkene step instead of forming the halogenated alkane. When adding one mole of HX to an alkyne, regioselective Markovnikov addition is observed for the alkene product typically exhibiting trans stereochemistry When adding one mole of HX...
Testbank Question 60 Your answer is incorrect. Try again. Which reaction sequence would convert cis-2-butene to trans-2-butene? O Br2i then 2 NaNH2i then H2/Ni2B(P-) Br2i then 2 NaNH2; then Li/liq. NH3 H30+, heat; then cold dilute KMnO4 05 02 O HBr; then NaNH2: then H2, Pt 98 None of these choices. on 82 Click if you would like to Show Work for this question: Open Show Wark bv Study
please answer questions 9-12 Question 9 1 pts Which of the following statements describes the reactivity of alkynes? An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. When a symmetrical internal alkyne reacts with HBr, two products are formed. Unlike alkenes, alkynes fail to undergo electrophilic addition reactions The o bonds of alkynes are greater in energy than the rt bonds and, therefore, are more reactive Alkynes react as electrophiles, whereas alkenes react as nucleophiles What is...
all of them please QUESTION 1 1 points Save Answer Which of the following can have cis/trans isomers? Draw their isomers. CH3CH2CH=CH2 (CH3CH2)2CCHCH3 CH3CH2CH=CHCH3 CH2=CH2 QUESTION 2 1 points Save Answer Name the following compounds, with cis/trans nomenclature. trans-4-methyl-2-hexene trans-4-thyl-2-pentane O cis-4-thyl-2-pentane O cis-4-methyl-2-hexene QUESTION 3 1 points Save Answer Name the following compounds, with cis/trans nomenclature Br Br Otrsans-2,5-dibromo-3-hexene trans-1,4-dibromo-2-butane O cis-1,4-dibromo-2-butane cis 2,5-dibromo-3-hexene Click Save and Submit to see and submit Click Save All Answers to save all...
QUESTION 1 10 points Save Answer be Treatment of an unknown solution containing Group III cations with sodium hydroxide and hydrogn alpero xides produces a yellowish solution and a green precipitate. Which cations are most probaby presetn? Aluminum and Chromium aluminum and nickel Chromium and Nickel Iron and Chromium QUESTION 2 10 points Save Answer which of the following is added to the nickel (II)ion to form a blue complex ion? ammonia Dimethylglyoxime (DMG) KSCN NaOH QUESTION 3 10 points...