4th Form Chemistry Questions
4th form Chemistry questionnaire
1. All of the following structures show the same molecule, except one. Which structure is different? H H H H
A) H -- C -- C -- C --- C -- H B) CH3 CH2 CH2 CH3 H H H H
H H -- C -- H CH3
C) H H D) H3 C --- C --- CH3 H C C C H H H H H
2. Which one of the following hydrocarbons will decolorize acidified potassium manganate (VII) solution?
A) CH4 B) C3 H6 C) C4 H10 D) C5 H12
3. Which pair of terms correctly describes the reaction between ethane and water? I Hydrogenation II hydration III addition IV substitution
4. A substance with a pleasant smell that undergoes hydrolysis to form an alcohol as one of the products is likely to be:
a) sodium ethanoate b) ethanoic acid c) ethanol d) butyl ethanoate
5. The correct name for the substance with the following structural formula is: H H O H H H-- C -- C -- C --- O -- C -- C -- H ethyl propanoate H H H H
6. The formula of ethanoic acid (C2 H4 O2) shows four hydrogen atoms, but it is a monobasic acid. This means that it:
A monobasic acid is an acid that has only one hydrogen ion to donate to a base in an acid-base reaction.
7. Soil – less culture is known as: hydroponics
8. The use of living organisms to control pests is called: biological control
9. Silicates mixed with other materials such as
1. All of the following structures show the same molecule, except one. Which structure is different? H H H H
A) H -- C -- C -- C --- C -- H B) CH3 CH2 CH2 CH3 H H H H
H H -- C -- H CH3
C) H H D) H3 C --- C --- CH3 H C C C H H H H H
2. Which one of the following hydrocarbons will decolorize acidified potassium manganate (VII) solution?
A) CH4 B) C3 H6 C) C4 H10 D) C5 H12
3. Which pair of terms correctly describes the reaction between ethane and water? I Hydrogenation II hydration III addition IV substitution
4. A substance with a pleasant smell that undergoes hydrolysis to form an alcohol as one of the products is likely to be:
a) sodium ethanoate b) ethanoic acid c) ethanol d) butyl ethanoate
5. The correct name for the substance with the following structural formula is: H H O H H H-- C -- C -- C --- O -- C -- C -- H ethyl propanoate H H H H
6. The formula of ethanoic acid (C2 H4 O2) shows four hydrogen atoms, but it is a monobasic acid. This means that it:
A monobasic acid is an acid that has only one hydrogen ion to donate to a base in an acid-base reaction.
7. Soil – less culture is known as: hydroponics
8. The use of living organisms to control pests is called: biological control
9. Silicates mixed with other materials such as