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2022 BGCSE Chemistry Paper-1 Question-31
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Q-50
Which of the following is the correct order of reactivity of metals, from most reactive to least reactive, based on their reaction with water?
calcium - magnesium - potassium - sodium
magnesium - potassium - sodium - calcium
potassium - sodium - calcium - magnesium
sodium - calcium - magnesium - potassium
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