WorksheetsChemCrew Progress Check #2
Total questions: 28
Worksheet time: 24mins
Which one of the following formulae is that of a saturated hydrocarbon?
CH3OH
C2H3
C3H8
C4H8
CH3CH(CH3)CH3 is the semi-structure of....
butane
2-methyl-propane
prop-2-ene
dimethylethane
The formulae of four molecules are given below. Which one would have a carbon-carbon double bond?
CH2O
C2H2
C4H10
C3H6
Which of the molecules below are non-polar?
BF3
NH3
CH3Cl
H2O
Covalent bonding results from:
a transfer of electrons between non-metal atoms
a sharing of electrons between metal atoms
a transfer of electrons from metal to non-metal atoms
a sharing of electrons between non-metal atoms
The correct names for the semi-structural formulae CH3CH(CH3)CH2CH3 and CH3CH=CHCH2CH3
2-methyl butane & 3-pentene
2-methyl butane & 2-pentene
3-methyl butane & 3-pentene
3-methyl butane & 2-methyl butene
Which of the following substances would dissolve with NH3 readily?
C2H6
BH3
CO2
H2O
Which molecule and intermolecular force below respectively has the highest boiling temperature?
CH3F, dispersion forces
CH3Cl, dipole-dipole forces
CH3I, dispersion forces
CH3Br, dipole-dipole forces
I am a hydrocarbon branch that contains three carbon atoms? Who am I?
prop-3-ene
propane
propyl
propyne
Of the intramolecular forces shown below, which is the most polar?
N-H
C-H
O-H
F-H
A bond angle of 109.5 corresponds to which molecular geometry?
trigonal planar
pyramidal
linear
tetrahedral
Which of the following is NOT a hydrocarbon derivative of the homologous series for alkanes?
C5H12
C2H4
C4H10
C3H8
Of the molecules CO2, CH4, NH3, H2O, BF3, and H2S the two with the same shape are...
CO2 and H2O
CH4 and NH3
H2O and H2S
BF3 and NH3
An isomer is best defined as....
different structural arrangement but same molecular formula
same structural arrangement but different molecular formula
different atomic number but same mass number
same atomic number but different mass number
Temporary dipoles help influence which intermolecular forces?
dispersion forces
dipole-dipole forces
covalent bonding
hydrogen bonding
A structural isomer of CH3CH(CH3)CH3 is:
CH2CH(CH3)CH3
CH2CH2CH2CH3
CH3CH2CH3
CH3CH2CH2CH3
Asymmetrical molecular can have permanent dipoles. This help influence which intermolecular forces?
dispersion forces
electrostatic forces
covalent bonding
dipole-dipole forces
Following IUPAC nomenclature, after your longest carbon-chain, the next step is to...
name each side branch
number the carbon atoms from the end of the chain so that it can produce the smallest numbers to branch
number the carbons closest to a double/triple bond
number the carbon atoms from the end of the chain so that it can produce the largest numbers to branch
Which of the following forces would require the most energy to overcome?
disperson forces
dipole-dipole forces
Hydrogen bonding forces
Intramolecular forces
How many carbon atoms are there in 3-methyl-hex-ane?
6 carbons
9 carbons
7 carbons
8 carbons
Pure liquid methanal will have which of the following intermolecular forces between each CH2O molecule
dipole-dipole
hydrogen bonding
covalent bonding
Van der Waals forces
Oxygen magnesium you're nearly done! An example of a pair of isomers is:
CH4 and CH3OH
CH3CH2NH2 and CH3CH2Cl
C6H6 and C6H12
CH3CH2(CH3)2 and CH3CH2CH2CH3
What am I? I have two lone pairs & two single bonding pairs around my central atom
tetrahedral
trigonal planar
bent
pyrimidal
Symmetrical molecules are both:
polar
non-polar
experience dispersion forces
experience dipole-forces
Which Chapter of Area of Study Two do you need more practice with at this stage?
Chapter 6 Intramolecular
Chapter 7 Intermolecular
Chapter 9 Organic Introduction
Which Chapter of Area of Study Two are you most confident with at this stage?
Chapter 6 Intramolecular
Chapter 7 Intermolecular
Chapter 9 Organic Introduction
What will have the highest boiling point?
CH4
CH3OH
CH3Cl
What is the correct semistructural formula?
CH3CH2CH2CH2(CH3)CH(CH3)CH2OH
CH3(CH2)3(CH3)CH(CH3)CH2OH
CH3CH2CH2CH(CH3)CH(CH3)CH2OH
CH3CH2CH2CH(CH3)CH2(CH3)CH2OH
