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Organic Chemistry

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  • Fullerenes and Carbon nanotubes are the oldest forms of carbon. TRUE/FALSE
    0
  • Using the words given below make sentences to list the 3 special features of covalent bonding. CARBON ATOMS, LONG CHAINS, RINGS, SINGLE, DOUBLE, TRIPLE, OTHER ELEMENTS, ATOMS, COVALENT BONDS
    1)Carbon atoms join to each other and form long chains. Other atoms attach to this chain.2)They form single, double or triple covalent bonds.3)Arrange in rings.
  • Draw the structure of ethene, propene, butene and pentene in your notebook.
    Check the picture and fix your answers if wrong.
  • Alkanes are chemically ___________ but they burn well.
    UNREACTIVE
  • Define Hydrogenation
    The addition of hydrogen across a C=C double bond is known as hydrogenation.
  • Alkanes/ Alkenes make good fuels.
    Alkanes
  • What is Fermentation?
    Fermentation is an anaerobic process, which takes place in the absence of oxygen.
  • This shows all the atoms in the molecule and how they are bonded.
    Structural formula.
  • Butane and Methylpropane are _____________ . They have the same molecular formula but different ____________ and _________ ___________ .
    melting and boiling points.
  • Carbon is a _________ and belongs to group ______ of the periodic table.
    Non metal, IV
  • Name the compounds that contain triple bonds with carbon.
    Alkenes
  • Alkanes/ Alkenes make good fuels....WHY?
    They burn exothermically.
  • How are dichloromethane, trichloromethane and tetrachloromethane formed?
    Methane and Chlorine react in sunlight. UV light splits chlorine molecules into energised atoms,which react with methane.Cl atom replaces H, Chloromethane etc.
  • List any 2 uses of hydrogenation.
    Manufacturing margarine and vegetable oils
  • Bromination is a reaction used as............................................................... (complete the sentence)
    Bromination is a reaction used as a chemical test for an unsaturated carbon.
  • Olive oil has __________ acid.
    oleic
  • Alkanes are a _____________ of saturated hydrocarbons.
    homologous series
  • THIS ALKANE FORMS A MAJOR PART OF NATURAL GAS. Choose the correct answer from the bracket (butane, methane, propane)
    Methane
  • Beer is made from _________ .
    Barley
  • Unjumble the sentence - reaction photochemical with chlorine substitution it is because reaction is interesting.
    The substitution reaction with chlorine is interesting because it is a photochemical reaction.
  • An organic compound has 3 different formulae. What are they?
    Empirical, Molecular and Structural formulae.
  • Alkyenes are a homologous series with OH as a functional group. TRUE/FALSE
    FALSE
  • Name some carbon containing compounds found in living things.
    Amino acids, sugars, fats, DNA
  • Is carbon monoxide toxic? Yes or No (If yes, why is it harmful)
    Yes. It is toxic and harmful as it interferes with the transport of oxygen around our body by the red blood cells.
  • If CO2 and H2O are the products. Guess the reactants.
    An alkane (butane) + Oxygen
  • Life on Earth evolved using carbon containing molecules such as ____________, __________, and _________ .
    nucleic acids, proteins and carbohydrates.
  • Name the 2 common forms of carbon.
    Diamond and Graphite.
  • Alkanes are hydrocarbons with a single bond, alkenes with a double bond. Name the family with triple bonds. ____________
    ALKYNES
  • What do the prefixes to the names of the Alkanes indicate?
    They indicate the number of carbon atoms in the chain.
  • The alkanes are unsaturated hydrocarbons. TRUE/FALSE
    0
  • Molecules with the same molecular formula can have different structures. TRUE/FALSE
    TRUE
  • What is Isomerism?
    When a molecule with the same molecular formula but different structures, which means the same number of atoms can be connected in different ways.
  • What is the colour of the bunsen burner flame. (blue, yellow, red)
    YELLOW
  • When is carbon monoxide produced in a combustion reaction between butane and oxygen?
    It is produced when the air supply is less or limited.
  • The simplest alcohol contains one carbon atom. Name the alcohol.
    METHANOL
  • How many carbon atoms are there in Ethane.
    2
  • Alkenes are unreactive, saturated and unaffected by acids and alkalis. TRUE/FALSE
    FALSE
  • What chemical test would you suggest for alkenes?
    It can decolorise bromine water.
  • Give one example of a compound in the homologous series with the name ending with ANE, ENE, OL and OIC acid.
    PROPANE, PROPENE, PROPANOL, PROPANOIC ACID
  • Alkenes are more reactive than alkanes. TRUE/FALSE
    1
  • Formula of Alkenes
    CnH2n
  • The product formed when ethene reacts with bromine solution. Name the compund.
    1,2 - dibromoethane
  • Name the alkane you see in the picture.
    Pentane
  • _______ water is decolorised when shaken with an alkene.
    Bromine
  • Halothanes can also be used for dry cleaning. TRUE/FALSE. Fix the answer is False.
    FALSE. Trichloroethane
  • The alkenes are ______________ hydrocarbons.
    unsaturated.
  • Name the functional group of alkenes.
    It is the carbon carbon double bond.
  • Unsaturated fats are healthier than saturated ones. TRUE/FALSE
    TRUE
  • What is a hydrocarbon?
    A hydrocarbon is a compound that contains only hydrogen and carbon.
  • The molecular formula of Butane
    C4H10
  • This shows the simplest possible whole number ratio of the atoms in a compound.
    Empirical formula
  • Ethanol is made by an addition reaction called __________ .
    Hydration
  • Pick the words that are relevant to Alkanes. ( single bond, long chains, unsaturated, unreactive, saturated, good as a fuels, carbon carbon double bonds, carbon carbon single bonds, first series of hydrocarbons.
    single bond, long chains, unreactive, saturated, good as fuels, carbon carbon single bonds, first series of hydrocarbons
  • Trichloromethane or chloroform was used as an anesthetic earlier. This was replaced by________ as it is a more useful and safe anesthetic.
    HALOTHANE
  • Compound with a formula of CnH2n+2
    Alkanes
  • Draw the structure of methane, ethane and propane in your notebook.
    Compare your answer to the picture given and fix it if wrong.
  • Define the term Isomer.
    Isomers are compounds that have the same molecular formula but different structural formulae.
  • Alkanes contain a ________ bond of carbon.
    Single
  • This represents the actual number of atoms in a molecule.
    Molecular formula
  • What is an addition reaction?
    A reaction in which a double bond breaks and adds two new atoms is known as an addition reaction.
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