A Level Chemistry OCR A Exam Questions With 100% Verified Answers
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Course
A Level Chemistry
Institution
A Level Chemistry
A Level Chemistry OCR A Exam Questions
With 100% Verified Answers
Ammonium ion - answerNH₄⁺
Nitrate ion - answerNO₃⁻
Nitric Acid - answerHNO₃
Covalent bond - answerA covalent bond is the strong electrostatic attraction between a shared
pair of electrons and the nuclei of the bonded ...
Actual yield - answer✔The amount of product obtained from a reaction
Addition polymerisation - answer✔Formation of a very long molecular chain (addition polymer),
by repeated addition reactions of many unsaturated alkene molecules (monomers)
Adsorption - answer✔The process that occurs when a gas or liquid or solute is held to the surface
of a solid
Alicyclic - answer✔Containing carbon atoms joined together in a ring that is not aromatic
Aliphatic - answer✔Containing carbon atoms joined together in unbranched (straight) or
branched chains
Alkali - answer✔A type of base that dissolves in water forming hydroxide ions, OH- (aq) ions.
Alkanes - answer✔The hydrocarbon homologous series with the general formula CₙH₂ₙ₊₂
Alkenes - answer✔The hydrocarbon homologous series with one double carbon-to-carbon bond
and
the general formula C₂H₂ₙ
Alkyl group - answer✔A side chain formed by removing a hydrogen atom removed from an
alkane parent chain. Any alkyl group is often shown as 'R'
Alkynes - answer✔The hydrocarbon homologous series with one triple carbon-to-carbon bond
and the general formula CₙH₂ₙ₋₂
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