1) Which of the following is the most reactive metal? a) Potassium b) Sodium c) Rubidium d) Lithium 2) When the group 1 metals react with water, what type of solution is formed? a) Alkaline b) Neutral c) Acidic 3) What are the alkali metals stored in? a) Air b) Nitrogen c) Water d) Oil 4) What colour will universal indicator go in alkaline solutions? a) Red b) Orange c) Green d) Purple 5) What gas is formed when a group 1 metal reacts with water? a) Carbon dioxide b) Hydrogen c) Nitrogen d) Chlorine 6) What is the charge on an ion formed when a group 1 element reacts? a) +1 b) -1 c) +2 d) -2 e) +3 f) -3 7) Which of the following is NOT seen when lithium reacts with water? a) Movement on the surface b) Fizzing c) A lilac flame d) The metal disappearing 8) What is the formula of caesium hydroxide? a) Cs(OH)2 b) CsH c) CaOH d) CsOH 9) Which metal is pictured reacting here? a) Lithium b) Sodium c) Potassium d) Rubidium 10) Which term describes a substance that can ‘be drawn into a wire’? a) Ductile b) Malleable c) Sonorous d) Strong

Topic 1: Group 1

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