1) John Newland put elements in order of their atomic weight (mass number). He put every _________ group together as he thought they had similar properities. a) 5th b) 6th c) 7th d) 8th e) 9th f) 10th 2) However the properties did not match very well. How did Mendeleev help to fix this problem? a) He put every 5th element in groups. b) He left gaps for undiscovered elements. c) He made up elements 3) The modern periodic table are now arranged in order of their ...... a) mass number. b) atomic number. c) Relative atomic mass. 4) Metals want to lose electrons their reactivity a) decreases down a group b) decreases up a group. 5) Non-metals want to gain electrons their reactivity.... a) increases down a group. b) increases up a group. 6) Group 1 metals react with water to form a __________ solution. a) Alkaline b) Acidic c) Neutral 7) An acid that fully ionises will have a pH of..... a) 1 b) 4 c) 8 d) 12 e) 14 8) An alkali that partialy ionises will have a pH of.... a) 1 b) 4 c) 8 d) 14 9) During a titration a weak acid reacted with a strong alkali. What indicator would be used? a) Universal indicator b) methyl orange c) phenolphthalein 10) What is this? a) Pipette b) Burette c) Measuring cylinder 11) The solubility of a solid increases when the temperature... a) increases b) decreases 12) The solubility of gases decreases when the temperature... a) increases b) decreases 13) The solubility of gases increases when pressure is .... a) increased b) decreased 14) Hard water is caused by .... a) magnesium ions b) sodium ions c) calcium ions d) magnesium and calcium ions e) sodium and calcium ions 15) What is used to kill bacteria to make it fit to drink? a) Fluorine b) Chlorine c) Sodium d) Bromine 16) What chemical is added to clump together small particles of dirt during water treatment. a) Chlorine b) Sodium chloride c) Aluminium sulphate 17) How much energy does it take to raise 1 g of water by 1 'C. a) 4.0 J b) 4.1 J c) 4.2 J d) 4.3 J e) 4.4 J f) 4.5 J 18) What type of reaction? a) Endothermic b) Exothermic 19) The energy change for a exothermic raction is a) positive b) negative 20) What colour is the flame test for lithium? a) golden yellow b) Lilac c) Green d) Bright red e) no colour 21) Sodium hydroxide can be used to test for cations. What colour precipitate is formed when sodium hydroxide reacts with Fe(II) ions. a) green - brown b) reddish brown c) blue d) white 22) What can be used to test for carbonates. a) Sodium hydroxide b) Hydrochloric acid c) Silver nitrate 23) What is used to test for halide ions? a) Silver nitrate b) Barium chloride c) Aluminium powder and sodium hydroxide 24) What is used to test for nitrate ions? a) flame test b) dilute hydrochloric acid and barium chloride c) aluminium powder and sodium hydroxide 25) What instrumental analysis can be used to detect and measure elements in samples? a) Chromatography b) Mass spectrometry c) Atomic absorption spectroscopy. d) Infra-red spectroscopy. 26) What instrumental analysis technique is used to identify particular bonds in a molecule? a) Mass spectrometer b) Ultraviolet spectroscopy c) Chromatography d) Infra-red spectroscopy 27) What instrumental analysis technique can be used to work out the amount of a substance in a solution? a) Infra-red spectroscopy b) Ultraviolet and visible light spectroscopy c) chromatography 28) How many moles in a 20 ml solution of 0.1 moldm-3 sodium hydroxide solution. a) 2 b) 1 c) 0.1 d) 0.2 e) 0.001 f) 0.002 29) If this sample reacted completely with 25 ml of Hydrochloric acid what is the concentration of hydrochloric acid in moldm-3? a) 0.06 b) 0.08 c) 0.008 d) 0.6 e) 1.34 f) 0.887

chem 3 higher ++

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