MCQ Collection

Chemistry MCQs

Practice Chemistry questions with answers and explanations.

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Common Test Chemistry practice 163: Using the accompanying practice context, what is [H⁺] for a solution of pH 5?

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Common Test Chemistry practice 164: Using the accompanying practice context, a reactant is added to a system at dynamic equilibrium. What does Le Châtelier’s principle predict?

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Common Test Chemistry practice 165: Using the accompanying practice context, which statement correctly describes oxidation?

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Common Test Chemistry practice 166: Using the accompanying practice context, what is the principal effect of a catalyst?

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Common Test Chemistry practice 167: Using the accompanying practice context, a hydrocarbon contains a carbon–carbon double bond. To which homologous series does it belong?

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Common Test Chemistry practice 168: Using the accompanying practice context, at which electrode does oxidation occur in an electrochemical cell?

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Common Test Chemistry practice 169: Using relative atomic mass 39, what is the mass of 5 mol of K atoms?

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Common Test Chemistry practice 160: Using the accompanying practice context, at which electrode does oxidation occur in an electrochemical cell?

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Common Test Chemistry practice 151: Using the accompanying practice context, a hydrocarbon contains a carbon–carbon double bond. To which homologous series does it belong?

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Common Test Chemistry practice 152: Using the accompanying practice context, at which electrode does oxidation occur in an electrochemical cell?

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Common Test Chemistry practice 153: Using relative atomic mass 1, what is the mass of 4 mol of H atoms?

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Common Test Chemistry practice 154: Using the accompanying practice context, which bond forms when two non-metal atoms share electron pairs?

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