In: Chemistry
The following is not an example of constitutional isomers
a) CH3CH2OH and CH3OCH3
b) (CH3)2CHCH2CH3 and CH3CH2CH2CH2CH3
c) CH3CH2NH2 and CH3NHCH3
d) All are consitutional isomers
2. If pKa of HCN = 8.0, phenol = 10.0, acetone =20.0, and CH4 = 35.0 the order of acidity would be?
3.Alkanes are
a) very reactive
b) completely inert
c) relatively inert and undergo substiution reaction
d) relatively inert and undergo addition reaction
4. Correct boiling point order of 2-methyl butane, dimethylpropane, and propane. Which is the highest, which is the lowest?
5. Which has the lowest number of secondary hydrogens?
n-pentane
isopentane
neo-pentane
d pentanol
6.Which is NOT true?
- looking through the C2-C3 bond of butane, the anti conformation is most stable
- A gauche conformer is eclipsing in nature
- Eclipsed conformations suffer of torsional strain
- Eclipsed conformation of propane is expected to have a higher strain of energy than the eclipsed conformation of ethane