Exam 1 Multiple Choice Flashcards
Which one of these structural features is not affected by hybridization?
Formal charge on bonded atom
Which basic molecular shape is possible from all types of hybridization?
Linear
An atom in a lewis structure has 2 sigma bonds, 1 double bond and 1 lone pair. What is Its hybridization?
sp3
Which structural factor is responsible for the difference in the acidity of the following acids
Location of the substituent
Which one of these types of numbers is not a measure of the strength or weakness of an acid?
pH
Which of the following covalent bonds has the largest dipole moment?
H-F
Which of the following is the most likely lewis structure of C2H2?
H-C ≡ C-H
What are the formal charges on nitrogen and the indicated oxygen in the following lewis structure?
N=+1, O=0
What orbitals overlap to form the C-H bond in ethene (H2C = Ch2)
Hs-Csp2
Which of the following strectures represents the correct condensed structure of lactic acid?
CH3CH(OH)COOH
The H2CO3/HCO3- buffer that controls the pH of blood is an example of ___ pair
Acid/conjugate base
During a gym workout our system produces large amounts of carbon dioxide which may eventually become toxic to the body. Which mechanism best illustrates the response to this increase in carbon dioxide by our body?
The equilibrium between carbonic acid and bicarbonate (Eq 2) shifts to the left which increases the concentration of H+
Which condition best describes acidosis?
A condition im which the system pH is less than 7.4
What are the hybridization (H) and formal charge (F) of the indicated oxygen atom in lactic acid?
H=sp2, F=0
Which two species act as a base and conjugate bace in the acid-base reaction shown below?
2 and 4
