a)
Interpretation:
The major product obtainable from addition of HBr to methylidenecyclohexane is to be predicted.
Concept introduction:
The first step in the addition of HBr with
To predict:
The major product obtainable from addition of HBr to methylidenecyclohexane.
b)
Interpretation:
The major product obtainable from addition of HBr to the octahydronaphthalene is to be predicted.
Concept introduction:
The first step in the addition of HBr with alkenes is the formation of a stable carbocation by the attack of the π electrons of the double bond on the positively polarized hydrogen of HBr eliminating a bromide ion. In the second step the carbocation reacts with the bromide ion to yield the product.
To predict:
The major product obtainable from addition of HBr to octahydronaphthalene.
c)
Interpretation:
The major product obtainable from addition of HBr to 4-methyl-2-pentene is to be predicted.
Concept introduction:
In electrophilic addition reactions, the first step is the attack of the π electrons of the double bond on the hydrogen of another reactant to yield a carbocation. One of the carbon in C=C gets attached to hydrogen while the other acquires a positive charge. In the second step, the carbocation formed can rearrange to give another more stable carbocation either by a hydride shift (shift of hydrogen atom with its electron pair) or by an alkyl shift (shift of an alkyl group with its electron pair) between neighboring carbons. In the last step the carbocation produced reacts with a negatively charged ion or eliminates a proton to give the product.
To give:
The major product obtainable from addition of HBr to 4-methyl-2-pentene.
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Chapter 7 Solutions
EP ORGANIC CHEMISTRY,24 MONTH-OWLV2
- 7:35 < Dji Question 19 of 22 5G 50% Submit What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10-9) and 0.120 mol of KBRO in 2.0 L of solution? | 1 2 3 ☑ 4 5 6 C 7 8 ☐ 9 +/- Tap here for additional resources ||| 0 ×10 Гarrow_forwardaw the major substitution products you would expect for the reaction shown below. If substitution would not occur at a significant rate under these conditions, check the box underneath the drawing area instead. Be sure you use wedge and dash bonds where necessary, for example to distinguish between major products. Note for advanced students: you can assume that the reaction mixture is heated mildly, somewhat above room temperature, but strong heat or reflux is not used. B C Br HO O Substitution will not occur at a significant rate. Explanation Check + Х Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibarrow_forwardComplete the following reactions with the necessary reagents to complete the shown transformation. Example: 1. 2. ? 3. 018 Br OH Answer: H₂O, H2SO4, HgSO4arrow_forward
- 7:34 • < Question 18 of 22 5G 50% Submit What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 × 10-4) and 0.410 mol of NaCNO in 2.0 L of solution? 1 2 3 ☑ 4 5 6 C 7 8 | 9 +/- 0 ×10 Tap here for additional resources ||| Гarrow_forward6:46 ✔ 5G 58% < Question 7 of 22 Submit What is the primary species in solution at the halfway point in a titration of NH3 with HBr? A NH3 and H+ B NH₁+ and H+ C NH4+ D NH3 and NH4+ Tap here for additional resources |||arrow_forward6:49 Dji < Question 15 of 22 4G 57% Submit The pOH of a solution is 10.50. What is the OH- concentration in the solution? A 3.2 × 10-4 M B C 3.2 x 10-11 M 10.50 M D 4.2 M E 3.50 M Tap here for additional resources |||arrow_forward
- ヨ 6:49 Dji < Question 13 of 22 5G 57% Submit The pH of a solution is 2.40. What is the H+ concentration in the solution? A B 2.5 x 10-12 M 4.0 × 10-3 M C 2.40 M D 4.76 M 11.60 M Tap here for additional resources |||arrow_forwardヨ C 6:48 Di✔ < Question 12 of 22 5G 57% Submit The pH of a solution is 12.50. What is the H+ concentration in the solution? A 0.032 M B 3.2 × 10-13 M 1.5 M D 9.25 M 12.50 M Tap here for additional resources |||arrow_forwardヨ C 6:48 Di✔ < Question 11 of 22 5G 57% Submit The pH of a solution is 1.50. What is the H+ concentration in the solution? A 0.032 M B 3.2 × 10-13 M 1.5 M D 2.15 M 12.50 M Tap here for additional resources |||arrow_forward