NEW
Font size
WorksheetsClickers Lesson 5
Total questions: 25
Worksheet time: 13mins
What is the IUPAC name of this molecule?
4-bromo-3-chloro-5,5-dimethylheptane
4-bromo-5-chloro-3,3-dimethylheptane
3-chloro-4-bromo-5-ethylhexane
5-chloro-4-bromo-3-ethylhexane
What is the IUPAC name of this molecule?
cis-3-fluoro-1-methylcyclopentane
trans-3-fluoro-1-methylcyclopentane
cis-1-fluoro-3-methylcyclopentane
trans-1-fluoro-3-methylcyclopentane
Which structure is 3-bromo-4-iodo-2,4-dimethylhexane?
How many chiral centers is there in this molecule?
1
2
3
4
Is this the most stable conformation of the molecule?
Yes, it is eclipsed.
Yes, it is gauche.
No, it is gauche.
No, it is eclipsed.
Is this molecule chiral?
Yes, it is R.
Yes, it is S.
The molecule is achiral.
What is not correct about this energy diagram?
The products cannot be higher in energy than the starting materials.
This reaction would not work with the shown reagents.
This reaction procedes in one step because of the 1° halide and the strong nucleophile.
Everything is correct.
Which statement is correct?
The activation energy is 4 kJ/mol and the reaction is endothermic by 10 kJ/mol.
The activation energy is 10 kJ/mol and the reaction is exothermic by 4 kJ/mol.
The activation energy is 4 kJ/mol and the reaction is endothermic by 6 kJ/mol.
The activation energy is 4 kJ/mol and the reaction is exothermic by 6 kJ/mol.
Which solvent is best to use when you try to do an SN1 reaction?
Acetone
DMSO
Methanol
Heptane
How many different products can form in this E2 reaction?
1
2
3
4
Which product is formed most in this reaction?
Which product is formed from this addition reaction?
The specific rotation of two molecules is shown, you measure the optical rotation of a mixture of the two and find that the optical rotation is +20°. What is the ratio between the enantiomers in this mixture?
60% R
40% S
40% R
60% S
75% R
25% S
25% R
75% S
This molecule has....
2 chiral centres (R, S) and is achiral.
0 chiral centres and is achiral.
2 chiral centres (R, S) and is chiral.
2 chiral centres (R, R) and is achiral.
Identify the pair of diastereomers.
A and B
A and C
B and D
none
What is the configuration of the anomeric center of this carbohydrate?
α
β
Can't be determined
What is the name of this molecule?
α -D-Fructopyranose (formed from aldohexose)
β -D-Fructopyranose (formed from aldohexose)
α -D-Fructofuranose (formed from ketohexose)
β -D-Fructofuranose (formed from ketohexose)
(1 min) Which Fischer projection is correct for this molecule D-gulose?
How many hydrogen bonds between these base pair and is this combination found in DNA or RNA?
2 hydrogen bonds, DNA
3 hydrogen bonds, DNA
2 hydrogen bonds,
RNA
3 hydrogen bonds,
RNA
What is the complementary strand of the following DNA strand?
5'-ACTGACTG-3'
5'-TGACTGAC-3'
5'-CAGTCAGT-3'
5'-GTACGTAC-3'
5'-CATGCATG-3'
Which one is the correct dipeptide of two L-alanines?
What is the correct structure of aspartic acid at pH = 7
At pH 7 to which electrode will alanine and aspartic acid move during electroforese?
Alanine -> Cathode,
Aspartic acid -> Anode
Alanine -> Anode
Aspartic acid -> Cathode
Alanine -> Anode
Aspartic acid -> No movement
Alanine -> No movement
Aspartic acid -> Anode
What is true about the orange part of this protein.
It is an α -helix, a primary structure.
It is an α -helix, a secondary structure.
It is an α -helix, a tertiary structure.
It is an α -helix, a quaternary structure.
What is the role of Boc- and DCC?
Boc activates the amino acid
DCC is the solvent
Boc is the protecting group DCC is the solvent
Boc activates the amino acid
DCC is the protecting group
Boc is the protecting group
DCC activates the amino acid
