CAIE A-Level Chemistry AS 13.1.1 Terms Hydrocarbon As a Compound Made Up of C Questions

Practise defining a hydrocarbon precisely and checking a formula or structure contains carbon and hydrogen only.

Exam points

Define a hydrocarbon as a compound containing carbon and hydrogen atoms only.
Classify a molecular formula as a hydrocarbon by checking that no element other than C and H is present.

[Maximum number: 1]

Two hydrocarbons have the formulae $\mathrm{C}_{\mathrm{W}} \mathrm{H}_{\mathrm{X}}$ and $\mathrm{C}_{\mathrm{Y}} \mathrm{H}_{\mathrm{Z}}$ . W, X, Y and Z represent different whole numbers.

\frac{W}{X}=\frac{Y}{Z}

Which row is correct when comparing the two hydrocarbons?

empirical formula

molecular formula

relative molecular mass

different

same

different

same

different

same

different

same

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CAIE A-Level Chemistry AS 13.1.1 Terms Hydrocarbon As a Compound Made Up of C Questions question 1