Homework Answers
The main reason that alkyl halides are good electrophiles is that the Carbon atom linked to the halogen is positively polarized so therefore this positively charged Carbon atom has vacant orbitals and is attracted to electrons.
Answer is (B)
Add Answer to:
18. The main reason that alkyl halides are good electrophiles is that: A) the carbon halogen...
Which of the following alkyl halides contains the longest carbon-halogen bond? Select one: A B C...
Which of the following alkyl halides contains the longest carbon-halogen bond? Select one: A B C D All the carbon-halogen bonds are the same length.
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to...
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to bond to iron in hemoglobin is the reason that CO is so toxic. The bond carbon monoxide forms to metals is through the carbon atom: M -C= 0 a. On the basis of electronegativities, would you expect the carbon atom or the oxygen atom to form bonds to metals? b. Assign formal charges to the atoms in CO. Which atom would you expect to...
pleas help 5,6,7,8,9,10 III IV 5. The product of free-radical halogenation reactions is an alkyl halide....
pleas help 5,6,7,8,9,10
III IV 5. The product of free-radical halogenation reactions is an alkyl halide. The major amount of this halide forms during the second step of propagation. However, you should be aware that one possible termination step also forms alkyl halides. Why does the majority of the alkyl halide product come from the propagation step and not the termination step? A. At any given time during the reaction, the concentration of both the alkyl radical and the halide...
1) State which of the electrophiles given below will react preferentially by i) SN1, ii) by...
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
Total Marks 53 Q1. True / False 1. Tertiary hydrogen is more reactive than secondary hydrogen...
Total Marks 53 Q1. True / False 1. Tertiary hydrogen is more reactive than secondary hydrogen towards chlorination. 2. Tertiary alcohol is less reactive towards HX than secondary alcohol. 3. Loss of electron density by carbon is called reduction. 4. SN2 is a twostep reaction. 5. In SN2 the stereochemistry at C is not inverted. 6. Smaller activation energy makes the reaction slow. 7. Bulky substrate favors the rate of SN? reaction. 8. Neutral nucleophiles are more favorable for SN...
I need help being walked through each part please lel 4: Electrophiles Il that an electrophile...
I need help being walked through each part please
lel 4: Electrophiles Il that an electrophile (E) is a Lewis Acid which accepts electrons. HO C H,Br (ChalCH CH3NH2 stions: For the compounds listed in Model 4: (a) Circle the compounds that could act as electrophiles, cross out those that would not (b) Explain why the compounds circled could act as electrophiles. (c) What feature must all electrophiles have? (d) Once your group has reached consensus, come up with an...
Alkyl halides may undergo elimination reactions with BrØnstead-Lowry bases in which the halide and an adjacent...
Alkyl halides may undergo elimination reactions with BrØnstead-Lowry bases in which the halide and an adjacent proton are lost to form a new π bond. Because of the loss of a proton and a halide anion the reactions are termed ‘dehydrohalogenation’. The two most common associated mechanisms are designated as either unimolecular (E1) or bimolecular (E2) elimination reactions based on reaction rate studies. E1 reactions proceed via a two-step mechanism that involves the cleavage of the leaving group (here the...
The electronegativity of an atom is its ability to attract electrons in a covalent bond closer...
The electronegativity of an atom is its ability to attract electrons in a covalent bond closer to itself. Fluorine is the most electronegative element. Table 1. Pauling's electronegativities for selected elements. H 2.20 Li 0.98 Be 1.57 B 2.04 с 2.55 N 3.04 o 3.44 F 3.98 Na 0.93 Mg 1.31 ΑΙ 1.61 Si 1.90 P 2.19 S 2.58 CI 3.16 K 0.82 Ca 1.00 Sc 1.36 Ga 1.81 Ge 2.01 As 2.18 Se 2.55 Br 2.96 Rb 0.82 Sr...
2) Rank the nucleophiles given below based on high, mediocre, and low nucleophilicity and reason why...
2) Rank the nucleophiles given below based on high, mediocre,
and low nucleophilicity and reason why based on their structures.
HO-CH3, H2N-CH3, KO-CH3, KO-C(CH3)3
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by...
Alkyl halides may undergo elimination reactions with BrØnstead-Lowry bases in which the halide and an adjacent...
Alkyl halides may undergo elimination reactions with BrØnstead-Lowry bases in which the halide and an adjacent proton are lost to form a new π bond. Because of the loss of a proton and a halide anion the reactions are termed ‘dehydrohalogenation’. The two most common associated mechanisms are designated as either unimolecular (E1) or bimolecular (E2) elimination reactions based on reaction rate studies. E1 reactions proceed via a two-step mechanism that involves the cleavage of the leaving group (here the...
Which of the following alkyl halides contains the longest carbon-halogen bond? Select one: A B C D All the carbon-halogen bonds are the same length.
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to bond to iron in hemoglobin is the reason that CO is so toxic. The bond carbon monoxide forms to metals is through the carbon atom: M -C= 0 a. On the basis of electronegativities, would you expect the carbon atom or the oxygen atom to form bonds to metals? b. Assign formal charges to the atoms in CO. Which atom would you expect to...
pleas help 5,6,7,8,9,10
III IV 5. The product of free-radical halogenation reactions is an alkyl halide. The major amount of this halide forms during the second step of propagation. However, you should be aware that one possible termination step also forms alkyl halides. Why does the majority of the alkyl halide product come from the propagation step and not the termination step? A. At any given time during the reaction, the concentration of both the alkyl radical and the halide...
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
Total Marks 53 Q1. True / False 1. Tertiary hydrogen is more reactive than secondary hydrogen towards chlorination. 2. Tertiary alcohol is less reactive towards HX than secondary alcohol. 3. Loss of electron density by carbon is called reduction. 4. SN2 is a twostep reaction. 5. In SN2 the stereochemistry at C is not inverted. 6. Smaller activation energy makes the reaction slow. 7. Bulky substrate favors the rate of SN? reaction. 8. Neutral nucleophiles are more favorable for SN...
I need help being walked through each part please
lel 4: Electrophiles Il that an electrophile (E) is a Lewis Acid which accepts electrons. HO C H,Br (ChalCH CH3NH2 stions: For the compounds listed in Model 4: (a) Circle the compounds that could act as electrophiles, cross out those that would not (b) Explain why the compounds circled could act as electrophiles. (c) What feature must all electrophiles have? (d) Once your group has reached consensus, come up with an...
The electronegativity of an atom is its ability to attract electrons in a covalent bond closer to itself. Fluorine is the most electronegative element. Table 1. Pauling's electronegativities for selected elements. H 2.20 Li 0.98 Be 1.57 B 2.04 с 2.55 N 3.04 o 3.44 F 3.98 Na 0.93 Mg 1.31 ΑΙ 1.61 Si 1.90 P 2.19 S 2.58 CI 3.16 K 0.82 Ca 1.00 Sc 1.36 Ga 1.81 Ge 2.01 As 2.18 Se 2.55 Br 2.96 Rb 0.82 Sr...
2) Rank the nucleophiles given below based on high, mediocre,
and low nucleophilicity and reason why based on their structures.
HO-CH3, H2N-CH3, KO-CH3, KO-C(CH3)3
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by...
Most questions answered within 3 hours.
-
The average length of time between arrivals at a turnpike
toll-booth is 26 seconds. What is...
asked 25 minutes ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 1 hour ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 1 hour ago -
An empty test tube weighs 15.923 grams. Then,
MgCl2•6H2O is added into the test tube. After...
asked 1 hour ago -
Assume memory access is 10 units of time and disk access is
10000 units of time....
asked 1 hour ago -
1. Are all good samples random?
2. Magazines often report surveys giving statistics such as “63%...
asked 2 hours ago -
Under all the various types of market structures, firms
must eventually earn some economic profits for...
asked 2 hours ago -
Consider the following fitness regime for a single locus trait
with two co-dominant alleles: w11 =...
asked 2 hours ago -
A large cable company reports the following.
80% of its customers subscribe to its cable TV...
asked 2 hours ago -
Please answer the question in brief.
Discuss the role of ERP in organizations. Are ERP tools...
asked 2 hours ago -
Discuss the pros and cons of collaborative software such
as SameTime. Does it increase productivity? What...
asked 2 hours ago -
Buying your in-laws a gift because it’s expected is
due to the ____________ motive of gift-giving....
asked 2 hours ago