General Chemistry
Organic Chemistry 1
Organic Chemistry 2
Biochemistry
Grab Bag
100
In the periodic table, what is the electronegativity trend from left to right on the table?
increases
100
Which is the best leaving group in a substitution reaction of an alkyl halide from the following choices? - F-, Cl-, Br-, I-, All are equally good leaving groups.
I-
100
Is the following statement true or false?
True
100
What amino acid is this?
Aspartic Acid
100
What is the highest occupied molecular orbital of nitrogen?
Pi orbital
200
This element is located in Group 13 Row 3
Aluminum
200
Name the following molecule:
3,4-diethyl-5-propylcyclopent-1-ene
200
How many hydrogen NMR signals will this molecule have?
4 Hydrogen Shifts
200
What is the buffer capacity of a buffer with a pKA of 4.5
3.5 - 5.5
200
Who created the periodic table?
Dmitri Mendeleev
300
Percent abundance of isotopes of carbon is calculated by dividing [blank] by [blank] then multiplying by 100
Mass of isotope by total mass
300
is well-known antimalarial drug from the bark of the cinchona tree. In principle, how many stereoisomers of quinine are possible?
16
300
Which functional group does this molecule have?
anhydride
300
What state of hemoglobin has a higher affinity for oxygen?
Relaxed
300
Which orbitals are these?
D orbitals
400
The Pauli Exclusion Principle states that, in an atom or molecule, no two [blank] can have the same [blank] electronic quantum numbers.
electrons, four
400
Which diene would be more reactive in a Diels-Alder reaction and why?
1 is more reactive because it is in a cis conformation
400
Name this structure
para-ethylphenol
400
Is this a reducing sugar?
No
400
The rarest naturally-occurring element in the Earth’s crust is?
Astatine
500
A sample in a weigh boat is weighed as 10.5 g. The weigh boat has a mass of 5.60 g. The sample is added to a beaker containing 0.021 L of water and it now reads 0.034 L. The sample has a density of ______ (g/mL).
0.38 g/mol
500
Which reaction mechanism predominates in the reaction below?
Is it SN1, SN2,E1 or E2
E2
500
Rank the acidity of these molecules (1-4), 1 being most acidic and 4 being least acidic
4, 1, 3, 2
500
A receptor has a mutation where glycine is replaced with glutamic acid. The binding dissociation goes from 5nm to 125 pm. What does this mean towards binding affinity?
Binding affinity increases
500
At what temperature does air become liquid?
Air becomes liquid at -190°C