Which of the following characteristics is/are potential identifiers of a Lewis acid?
I. Unfilled octet
II. Double bond present
III. Compounds with metal and hydroxide
Lewis acid are the electron deficient compounds. So, the characteristics are
1) unfilled octet
For example.. AlCl3 where Al having 6 shared electron with cl
2) double bond present
For example... SO2 where S is forming double bond with oxygen atom.
Which of the following characteristics is/are potential identifiers of a Lewis acid? I. Unfilled octet II....
which of these species can act as a lewis acid? I. FE3+ II. CN- III. Ch3COOH A) I only B) II Only C) III Only D) I and III E) II and III D) I, II, and III
Which of the following are characteristics of a premium bond? I. coupon rate < yield-to-maturity II. coupon rate > yield-to-maturity III. market price > face value IV. market price < face value A. II and IV only B. I only C. I and III only D. II and III only
Which of the following compounds have conjugated double bonds? I II III IV II and v II, IV, and v I and III I, III, and IV all of them
17 1 point The Lewis dot formula for formaldehyde, H2CO, shows: I. II. III. IV. three single covalent bonds. one unshared pair of electrons. one double covalent bond. two unshared pairs of electrons. two single covalent bonds. V. I and II III, IV and V II, III and V II and III I and IV
Q 3.22: Which of the following compounds can be considered a Lewis acid and not a Bronsted-Lowry acid? A acetylene hydronium ion © iron (III) bromide D hydrochloric acid
The compounds shown below can be distinguished by which 1H-NMR characteristics? I) number of signals II) splitting III) integration IV) chemical shift Select one: a. IV b. I, II, IV c. I, IV d. II
Which of the following statements about Lewis Dot Structures is false? A. An octet is when an atom shares 8 valence electrons B. An ionic bond occurs when electrons are transferred C. A covalent bond occurs when electrons are shared D. A duet is a stable electron configuration for helium E. All the above statements are true
For each of the following molecules and ions: i.) Write the Lewis structure ii.) Indicate the molecular geometry iii.) Indicate the approximate bond angles A.) Sulfur trioxide, SO3 B.) triiodide ion, I3- C.) sulfur hexafluoride, SF6
Explain (with a Lewis structure) how each of the following molecules violates the octet rule: a) H2Se b) SF c) NO2 Rank the following bonds in order of increasing bond polarity: C-C, C-O, C-F, C-I.
Given the three compounds (i) acetic acid (ii) hydroxyacetone (iii) methyl formate Which are constitutional isomers of one another? Question 7 options: only (ii) and (iii) only (i) and (ii) only (i) and (iii) they are all constitutional isomers of one another