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A hydrocarbon X, C4H6 (0.50 g), was shaken with hydrogen and palladium until uptake of...

A hydrocarbon X, C4H6 (0.50 g), was shaken with hydrogen and palladium until uptake of hydrogen ceased; 415cm3 0f hydrogen (measured at stp) were absorbed. Reaction with mercury(II) sulphate in dilute sulphuric yielded Y, C4H8O; Y gave positive iodoform reaction. Polymerisation of X gave Z, C12H8. What are the structures of X, Y and Z.
(H = 1, C = 12, O = 16; 1 mole of gas at stp occupies 22400cm3).

List three deductions that can be made from the qualitative and quantitative analysis of a given organic compounds.

The label on a reagent bottle containing containing a clear liquid A dropped off. The liquid was neutral to litmus and gave a colourless gas B with sodium.
To which homologous series does A belong?
Name the gas B?

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free

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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free