- A single organic compound has at least one correct name> How many of the following names are correct?
4-chlorohexane
3,3-dimethyl-3-hexene
cis-3-ethyl-3-hexene
cis-1-hexene
2-pentanol- 1
- 2
- 3
- 4
- Which one of the following compounds will react (in the presence of a concentrated sulfuric acid catalyst) with its own oxidised product to give a sweet-smelling liquid?
- propanal
- 1-propanol
- 2-propanol
- propanone
- When a compound is shaken with a solution of bromine in water, the red brown colour of the bromine rapidly disappears. Which one of the following could the compounds be?
- 2 bromopropane
- cyclohexane
- 2-methylbutane
- 1-pentene
- Which one of the following solutions could be used to distinguish between 2-methyl-2-propanol [(CH3)3COH] and butanoic acid [CH3CH2CH2COOH]?
- a solution of bromine in water
- a solution containing sulfuric acid and potassium dichromate
- dilute hydrochloric acid
- sodium hydrogen carbonate solution
- When the following pairs of substances react togther, hydrogen is evolved in three cases. In which one reaction is hydrogen not evolved?
- acetic acid (ethanoic acid) and sodium metal
- concentrated nitric acid and copper metal
- ethanol and sodium metal
- lithium metal and water
- Which formula represents a compound which is both a ketone and a carboxylic acid?
- Compound
- Compound
- Compound
- Compound
- Compound
- Which formula represents two substances which are geometric (cis/trans) isomers?
- C3H6
- C3H8
- H2CC(CH3)2
- CH3CHCHCH3
- Which one of the following cannot be a product of oxidation of CH3CH2CH2CH2OH?
- CH3CH2CH2CHO
- CH3CH2CH2COOH
- CH3COCH2CH3
- CO2
- What is the correct name for the following formula?
- 1,1,4,4-tetramethylbutene
- 1,1,4,4-tetramethyl-3-butene
- 2,5-dimethyl-2-hexene
- 2,5-dimethyl-4-hexene
- Which one of the following compounds can form geometric (cis/trans) isomers?
- 1-butene
- 2-methyl-1-butene
- 1-pentene
- 2-pentene
- Which formula represents a substance that can be oxidised to a ketone?
-
- Which one of the following compounds will have geometric (cis/trans) isomers?
- 1,1-dichloroethane
- 1,2-dichloroethane
- 1,1-dichlororethene
- 1,2-dichlororethene
- Which one of the following pairs of compounds are isomers?
- (I) only
- (II) only
- (III) only
- all of the above
- How many alkenes have the molecular formula C4H8?
- 3
- 4
- 5
- 6
- Which of the following represents a soap?
- CH3(CH2)16COOK
- NaOH
- CH3COONa
-
- In a series of experiments the following observations were made about a colourless liquid.
Experiment Observation Liquid was added to potassium dichromate solution No visible reaction Liquid was added to sodium metal Colourless, odourless gas evolved, silvery solid dissolved Liquid was added to ethanol and heated with concentrated sulfuric acid Fruity smell produced
Which one of the following substances would produce all of these observations?- 2-methyl-2-butanol
- butanoic acid
- 1-butanol
- 2-butanone
- Ionisation of acetic (ethanoic acid) can be represented by the following equation
CH3COOH(aq) + H2O(l) <=> CH3COO- (aq) + H3O+(aq)
Which one of the following would increase the concentration of acetate ions?- addition of a strong base
- addition of a strong acid
- addition of a weak acid
- diultion with water
- How many aldehydes and ketones are there with the molecular formula C4H8O ?
- 2
- 3
- 4
- 5
- How many isomers have the molecular formula C3H5Cl?
- 2
- 3
- 4
- 5
- Which of the following are examples of addition reactions?
- III and IV only
- III only
- I and IV only
- All of I, II, III and IV
- 0.100 mol of a compound has a mass of 9.00 g. Its empirical formula is CHO2. What is the molecular formula of the compound?
- CHO2
- C2H2O4
- C3H3O6
- C4H4O8
