General Chemistry
Organic Chemistry 1
Organic Chemistry 2
Biochemistry
Grab Bag
200
In the periodic table, what is the electronegativity trend from left to right on the table?
increases
200
Which is the best leaving group in a substitution reaction of an alkyl halide from the following choices? F-. Cl-. Br-. I-.
I-
200
True or False
True
200
What amino acid is this?
Aspartic Acid
200
What is the highest occupied molecular orbital of nitrogen?
Pi orbital
400
This element is located in Group 13 Row 3
Aluminum
400
Name the following molecule:
3,4-diethyl-5-propylcyclopent-1-ene
400
How many hydrogen NMR signals will this molecule have?
4 hydrogen signals
400
What is the buffer capacity of a buffer with a pKA of 4.5
3.5 - 5.5
400
Who created the periodic table?
Dmitri Mendeleev
600
Percent abundance of isotopes of carbon is calculated by dividing [blank] by [blank] then multiplying by 100
Atomic mass of isotope/
Total (sum) of the atomic masses of isotopes
600
Quinine is well-known antimalarial drug from the bark of the cinchona tree.
In principle, how many stereoisomers of quinine are possible?
16
600
Which functional group does this molecule have?
anhydride
600
What state of hemoglobin has a higher affinity for oxygen?
Relaxed
600
Which orbitals are these?
D orbitals
800
The Pauli Exclusion Principle states that, in an atom or molecule, no two [blank] can have the same [blank] electronic quantum numbers.
electrons, four
800
Which diene would be more re-active in a Diels-Alder reaction and why?
1 is more reactive because it is in a cis conformation
800
Name this structure
para-ethylphenol
800
Is this a reducing sugar?
No
800
The rarest naturally-occurring element in the Earth’s crust is?
Astatine
1000
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
1000
Which reaction mechanism predominates in the reaction below?
E2
1000
Rank the acidity of these molecules (1-4), 1 being most acidic and 4 being least acidic
4, 1, 3, 2
1000
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
1000
At what temperature does air become liquid?
Air becomes liquid at -190°C