OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 QUESTION PAPER

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A Level Chemistry A H432/02 Synthesis and analytical techniquesWhich statement is correct for the different rates of hydrolysis of RCl and RBr? A RBr is hydrolysed faster because Cl is more electron... egative than Br. B RBr is hydrolysed faster because the C–Cl bond enthalpy is greater than C–Br. C RCl is hydrolysed faster because Cl is more electronegative than Br. D RCl is hydrolysed faster because the C–Br bond enthalpy is greater than C–Cl.Which statement about absorption of radiation is correct? A Infrared radiation can result in the breakdown of the ozone layer. B Ultraviolet radiation can cause some polymers to photodegrade to benefit the environment.The skeletal formula of an organic compound is shown below.The structure of a drug is shown below:How many chiral carbon atoms are there in a molecule of the drug?Which process has the highest atom economy for preparing ethene, C2H4? In each process, assume that ethene is the only product that is used. [Show More]

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OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 1,PAPER 2 AND PAPER 3 QUESTION PAPER

1 An aqueous solution contains a mixture of chloride, bromide and iodide ions. AgNO3(aq) is added to this mixture, followed by an excess of dilute NH3(aq). The resulting mixture is then filtered. Whi...

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