Chemistry 0620 · IGCSE · Alkanes

Alkanes — practice question

Propane and propene both undergo reaction with chlorine.
(a(i))[1]

State the name for reactions in which one atom in an alkane is replaced by a different atom.

(a(ii))[1]

State the role of ultraviolet light in this reaction.

(a(iii))[1]

State the name used for any reaction that requires ultraviolet light.

(a(iv))[2]

Write the symbol equation for propane reacting with chlorine.

(b(i))[1]

State the reason propene is described as an unsaturated molecule.

(b(ii))[1]

Give the structural formula for the product of this reaction.

(c)[4]

Draw the displayed formula and give the name of each product.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: substitution reaction

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