they follow first order kinetics as it is Sn1 reaction and 100% racemization or inversion is not possible
Question 13 (1 point) Which of the following is always true of solvolysis reactions? I. II....
A. two B. four C. six D. eight 15. Which one of the following compounds has highest boiling point? I. CH3CH2CH3 II. CH3CH2OH III. CHOCH A. I B . II C. III 16. What occurs when an optically active alcohol reacts with HBr to give an alkyl halide? A complete inversion of configuration takes place at the chirality center B. incomplete and varying inversion of configuration takes place at the chirality center C. the chirality center retains its configuration D....
A. two B.four 15. Which one of the following compounds has highest boiling point? 1. CH3CH2CH3 II. CH3CH2OH III. CH3OCH3 C. six D. eight AI B. II CINI 16. What occurs when an optically active alcohol reacts with HBr to give an alkyl halide? A. complete inversion of configuration takes place at the chirality center B. incomplete and varying inversion of configuration takes place at the chirality center C. the chirality center retains its configuration D. the molecule loses its...
Which of the following are true? I) Firms have long-run target dividend payout ratios. II) Dividend changes follow shifts in long-term, sustainable earnings. III) Managers are reluctant to make dividend changes that might have to be reversed. Select one: a. I only b. II only c. III only d. I, II and III e. None of the above
19. Which of the following statements are always true? (i) Re(2)Im(iz) 0 (ii) Re(iz)Im(z) = 0 (iii) z- Zi Im(z) = 0 (a) (ii) only (b) (i) only (c) (iii) only (d) (i) and (ii) only (e) (ii) and (ii) only
Problem #7: Which of the following statements are always true for vectors in R3? (i) If u (vx w)-4 then w - (vxu)-4 (ii) (5u + v) x (1-40 =-21 (u x v) (ili) If u is orthogonal to v and w then u is also orthogonal to w | V + V W (A)( only (B) (iii) only (C) none of them (D) (i) and (iii) only (E) all of them (F) (i) only (G)i and (ii) only (H)...
how would I solve 21 and 22
Question 21 (4 points) Which of the following is an SN2 reaction? OCH, OH + CH3 OH – CH3 – 0 – CH3 + H2O O CH3 I + KOH – CH3 OH + KI OCH3 CH2 I + KOH – CH2 = CH2 + H2O + OCH2 = CH2 + HCI – CH3 CH, CI Which statement is true for SN2 reactions? substitution at the stereocenter gives predominantly a racemic product O...
1)Which of the following is/are true? I. Force is a scalar quantity. II. Force is a vector quantity. III. A force is a push or a pull between objects that occurs only when the objects are in physical contact. IV. Non-contact forces are also called action-at-a-distance forces. A) I and III only B)II and IV only C)II only D)I only E)II and III only 2)Which of the following is/are true? I. Mass is a vector quantity. II. Mass is a...
123. Which of the following statements is/are true? I. Because ionic forces are so much stronger than hydrogen bonds, no ionic compound will be soluble in ethanol (CH3CH2OH) II. Making of any solution in which a solid is dissolved in a liquid will always have a positive entropy. III. the heats of hydration of ions increase (become more exothermic) as ionic charge increases a. I and II only b. I and III only c. II and III only d. all...
20) Which of the following statements is true about SN1 reactions of alkyl halides? A) The reactions are favored by polar solvents. B) The reaction occurs via a one-step back-side attack. C) Complete inversion of configuration occurs. D) Reaction rates depend only on the concentration of the nucleophile. E) The reactions are favored by nonpolar solvents.
need help clear your answer !!
Question 1 (1 point) Which of the following correctly lists the ions in order of increasing absolute value of the enthalpy of hydration? O 1) srat < cazt <I 2) I < Sr2+ < Ca2+ 03) sr2< < cazt O 4) caz* < Srz* <I 05) Ca2+ < I < Sr2+ Question 2 (1 point) Which of the following is true? i. Combustion enthalpies are always negative. ii. Hydration enthalpies are always negative. O...