Edexcel Jun 2017 (IAL) Paper 2 Q15

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14 The rate of the reaction between calcium carbonate and acid increases when the particle size of the calcium carbonate decreases. B 1 mol dm3 nitric acid is used instead of 1 mol dm3 hydrochloric acid. C 0.5 mol dm3 sulfuric acid is used instead of 1 mol dm3 hydrochloric acid. D the pressure is increased. 15 The most significant factor determining the trend in the rate of hydrolysis of halogenobutanes is (Total for Question 14 = 1 mark) A E R A S I H T N I E T I R W T O N O D the electronegativity of the halogen. the magnitude of the halogen ionisation energy. the oxidising ability of the halogen. D the carbon-halogen bond strength. A E R A S I H T N I E T I R W T O N O D 16 The action of ultraviolet radiation on an oxygen molecule high in the atmosphere results in (Total for Question 15 = 1 mark) A no change because O2 has no dipole. B only increased bond vibration. the production of two oxygen atoms. D the formation of an oxide ion. 17 The mass spectrum of propanal can be clearly distinguished from the mass spectrum of propanone. Only the propanal spectrum has a large peak due to the (Total for Question 16 = 1 mark) A C3H6O+, molecular ion, m/e = 58 B C3H5O+ fragment, m/e = 57 C C2H5 D CH3 + fragment, m/e = 29 + fragment, m/e = 15 Use this space for any rough working. Anything you write in this space will gain no credit. (Total for Question 17 = 1 mark) A E R A S I H T N I E T I R W T O N O D *P48383A0724* Turn over<br />

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