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WorksheetsGeneral Knowledge of Carbon Compound 🌈
Total questions: 30
Worksheet time: 15mins
What is the other name for fat?
propane-1,2,3-triol
2 methyl but-1,3 -diene
Triglyceride
Zymase
Which of the following is not an inorganic compound?
Cyanides
Cellulose
Carbonate
Metallic carbides
Which of the following is the chemical reactions of alkenes?
i) Addition of hydrogen
ii) Addition of water
iii) Addition of alkyl group
iv) Addition of hydroxyl group
i, ii
i, ii, iii
ii, iv
i, ii, iv
What is the functional group for alcohol?
Hydroxyl
Alkyl
Carboxyl
Carboxylate
The general formula for carboxylic acid is CnH2n+1COOH, n= ?
n= 0,1,2,3,...
n= 1,2,3,4,...
n= 2,3,4,5,...
n= 0,1,2,3
What is elliminated during esterification?
1 Hydrogen ion
Hydrogen and Oxygen ions
A molecule of water
Oxygen ions
What cause the properties of rubber improves after vulcanisation?
Presence of cross-linkage
The addition of sulphur
Presence of cross-linkage of sulphur atoms between the rubber molecules
The addition of sulphur atoms between the rubber molecules
which of the following is saturated hydrocarbon?
Alkene
Ester
Alcohol
Alkane
Choose the correct general formula for alkane
CnH2n+1, n= 1,2,3,...
CnH2n+2, n= 1,2,3,....
CnH2n+2, n= 1,2,3
CnH2n+1, n= 1,2,3
chemical properties of alkane are ...
i) Combustion
ii) Hydrogenation
iii) Hydration
iv) Halogenation
i, iii
i, iii, iv
i, iv
i, ii, iii
General formula of Alkene is
CnH2n, n= 1,2,3,...
CnH2n, n= 2,3,4,...
CnH2n, n= 0,1,2,...
CnH2n, n= 1,2,3
What is the catalyst in addition reaction of hydrogen of alkene?
Sulphuric acid
Benzene
Nickel
Phosphoric acid
which addition reaction of alkene will form diol?
Addition reaction of halogen
Addition reaction of hydroxyl group
Addition reaction of sulphur
Addition reaction of water
which of the following is not the physical properties of alkane and alkene?
Soluble in water
Less dense than water
Cannot conduct electricity
Low melting and boiling point
General formula for alcohol is
CnH2n+1OH
CnH2n+2OH
CnH2nOOH
CnH2nOH
In the making of ethanol by fermentation, what is the enzyme that decompose the glucose to form ethanol and carbon dioxide?
Zymes
Zimes
Zimase
Zymase
What is the combination for the reaction to make alcohol that have the presence of phosphoric acid as the catalyst?
Ethene and hydrogen
Ethane and water
Ethane and halogen
Ethene and water
What is the product for oxidation?
alkene and water
Alcohol and water
Alkane and water
Carboxylic acid and water
Ethene produced from dehydration can be detected when
acidified potassium dichromate solution turns from orange to green
Decolourizes reddish-brown bromine water
Turns blue litmus paper to colourless
Ignite glowing wooden splinter
functional group of carboxylic acid is
C=C
Carboxylate group
Carboxyl group
Carbonate
What is the name of the salt form from the chemical reactions of carboxylic acid
Carboxylate salt
Carboxyl salt
Carbonate salt
Carbides salt
Methanoic acid + X = methyl methanoate. What is X?
Methane
Methene
Methanol
Methyl
Fats form through esterification. How about oil?
Catalytic hydrogenation
Polymerization
Hydrogenation
Esterification
Choose the correct properties about saturated fats
Low melting point
Source from plant
Single covalent bond
Liquid at room remperature
How to convert unsaturated fats to saturated fats?
By hydration
By halogenation
By dehydration
By hydrogenation
IUPAC name for isoprene molecule
2 methyl but-1,3-diene
Propane-1,2,3-triol
2 metyl propane
What cause the negative charge on the protein membrane to neutralize
Copper ions
sodium ions
Hydrogen ions
hydroxide ions
How to prevent latex from coagulate?
Ammonia
sulphuric acid
Nickel
Benzene
Which is more elastic
Vulcanized rubber
Unvulcanized rubber
How does the breakage of protein membranes of rubber particles happen after it neutralize?
Leakage at the membranes
Collision between the particles
The membrane shrink
