OCR CHEMISTRY FINAL PAPER SOLVED
QUESTIONS WITH FULL PRACTICE
SOLUTION
●● Addition Polymer
Answer: A very long molecular chain formed by repeated addition
reactions of many unsaturated alkene molecules
●● Addition Reaction
Answer: A reaction in which a reactant is added to an unsaturated
molecule to make a saturated molecule
●● Acid Dissociation Constant
Answer: Ka= [H+(aq)][A-(aq)]/[HA(aq)]
●● Aliphatic Hydrocarbon
Answer: A hydrocarbon where carbon atoms are joined together in
straight or branched chains
●● Alkali
Answer: A base that dissolves in water forming OH- ions
,●● Alkanes
Answer: The homologous series with general formula CnH2n+2
●● Alkylammonium salt
Answer: A compound where the hydrogen's on an ammonium ion have
been substituted by alkyl chains
●● Alkylation
Answer: Addition of hydrocarbon chains to an organic compound
●● Alkyl group
Answer: An alkane with a hydrogen atom removed e.g. CH3, C2H5
●● Amide
Answer: A compound with a functional group made of an alcyl group,
which is directly attached to an amine
●● Amphoteric chemicals
Answer: Chemicals that can react with both acids and bases
●● Anion
Answer: A negatively charged ion
, ●● Anhydrous
Answer: A substance that contains no water molecules
●● Arrhenius plot
Answer: A graph of lnK = lnA - Ea/R x 1/T
●● Atomic Orbital
Answer: A region of space where you will likely find electrons. Each
orbital can hold 2 electrons, with opposite spins
●● Atomic number
Answer: The number of protons in the nucleus of an atom
●● Average bond enthalpy
Answer: The mean energy needed for 1 mole of a given type of gaseous
bonds to undergo homolytic fission
●● Avogadro constant
Answer: The number of atoms per mole of the carbon-12 isotope
(6.02x10^23)
●● Base
Answer: A chemical that will react with an acid
QUESTIONS WITH FULL PRACTICE
SOLUTION
●● Addition Polymer
Answer: A very long molecular chain formed by repeated addition
reactions of many unsaturated alkene molecules
●● Addition Reaction
Answer: A reaction in which a reactant is added to an unsaturated
molecule to make a saturated molecule
●● Acid Dissociation Constant
Answer: Ka= [H+(aq)][A-(aq)]/[HA(aq)]
●● Aliphatic Hydrocarbon
Answer: A hydrocarbon where carbon atoms are joined together in
straight or branched chains
●● Alkali
Answer: A base that dissolves in water forming OH- ions
,●● Alkanes
Answer: The homologous series with general formula CnH2n+2
●● Alkylammonium salt
Answer: A compound where the hydrogen's on an ammonium ion have
been substituted by alkyl chains
●● Alkylation
Answer: Addition of hydrocarbon chains to an organic compound
●● Alkyl group
Answer: An alkane with a hydrogen atom removed e.g. CH3, C2H5
●● Amide
Answer: A compound with a functional group made of an alcyl group,
which is directly attached to an amine
●● Amphoteric chemicals
Answer: Chemicals that can react with both acids and bases
●● Anion
Answer: A negatively charged ion
, ●● Anhydrous
Answer: A substance that contains no water molecules
●● Arrhenius plot
Answer: A graph of lnK = lnA - Ea/R x 1/T
●● Atomic Orbital
Answer: A region of space where you will likely find electrons. Each
orbital can hold 2 electrons, with opposite spins
●● Atomic number
Answer: The number of protons in the nucleus of an atom
●● Average bond enthalpy
Answer: The mean energy needed for 1 mole of a given type of gaseous
bonds to undergo homolytic fission
●● Avogadro constant
Answer: The number of atoms per mole of the carbon-12 isotope
(6.02x10^23)
●● Base
Answer: A chemical that will react with an acid
