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Product of aldol condensation of propanone with Ba(OH)2 followed by heating

The same question, asked 2 times: 3 May 2023 S1, 12 May 2024 S1. Every wording below, oldest first.

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  1. Question 1

    3 May 2023 S1

    65
    Identify the product 'B' in the following sequence of reactions. Propanone →Ba(OH)2A→Δ,−H2OB\xrightarrow{\text{Ba(OH)}_2} A \xrightarrow{\Delta,-\text{H}_2\text{O}} B

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  2. Question 2

    12 May 2024 S1

    74
    Identify product B in following sequence of reactions: 2n2n Propanone →Ba(OH)2\xrightarrow{\text{Ba(OH)}_2} A →Δ,−H2O\xrightarrow{\Delta, -\text{H}_2\text{O}} nn B

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