Organic Chemistry
449 questions· page 1 of 45
An organic compound has an of 88.
What is the molecular formula of this compound?
Options
A
B
C
D
An ester has the structural formula .
What is the name of this ester?
Options
A ethyl propanoate
B methyl propanoate
C propyl ethanoate
D propyl methanoate
Petroleum is separated into fractions in a fractionating column.
Which property of the fractions increases from the bottom to the top of the column?
Options
A boiling point
B chain length
C viscosity
D volatility
Three statements about alkanes are listed.
- They contain carbon and hydrogen only.
- They contain only single covalent bonds.
- They are saturated hydrocarbons.
Which statements are correct?
Options
A 1, 2 and 3
B 1 and 2 only
C 2 and 3 only
D 3 only
The flowchart shows some reactions of hydrocarbons.
Which row is correct?
Options
| process 1 | condition 2 | |
|---|---|---|
| A | cracking | heat with nickel catalyst |
| B | fractional distillation | heat with acid catalyst |
| C | cracking | heat with acid catalyst |
| D | fractional distillation | heat with nickel catalyst |
The structure of a condensation polymer is shown.
Which two monomers form this polymer?
Options
A and
B and
C and
D and
Compound P is an alcohol with the molecular formula .
How many structural isomers are there of compound P?
Options
A 2
B 3
C 4
D 5
Alkanes undergo a substitution reaction with chlorine.
Which row shows two correct statements about the reaction between alkanes and chlorine?
Options
| statement 1 | statement 2 | |
|---|---|---|
| A | a carbon atom is replaced by a chlorine atom | the reaction requires thermal energy |
| B | a hydrogen atom is replaced by a chlorine atom | the reaction requires thermal energy |
| C | a carbon atom is replaced by a chlorine atom | the reaction requires ultraviolet light |
| D | a hydrogen atom is replaced by a chlorine atom | the reaction requires ultraviolet light |
A molecule of the compound is shown.
This molecule undergoes two separate addition reactions. It undergoes an addition reaction with excess bromine and an addition reaction with steam.
One molecule of reacts with ......1...... of bromine.
When reacts with steam, ......2...... is formed.
Which words complete gaps 1 and 2?
Options
| 1 | 2 | |
|---|---|---|
| A | one molecule | an alcohol |
| B | one molecule | a carboxylic acid |
| C | two molecules | an alcohol |
| D | two molecules | a carboxylic acid |