IGCSE A Level Chemistry Certification MCQs – Practice Test 19 (Chapter 22)
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MCQ 91: The electronegativity of Aluminum is:
MCQ 92: Consider the reaction: Na(s) + H2O(l) → NaOH(aq) + H2(g). Moles of Na required to balance the equation are:
MCQ 93: The oxides of Al and Si are:
MCQ 94: The metal ions and chloride ions are called:
MCQ 95: Non-conductors of electricity include:
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