Formulae, functional groups and terminology — Chemistry 0620 IGCSE Question & Worked Solution

(a)[2]

What does the term homologous series mean?

(b(i))[3]

Which two of these compounds, F, G, H, I, J and K, are saturated hydrocarbons? Explain your answer.

(b(ii))[1]

Which one of these compounds is the principal component of natural gas?

(b(iii))[2]

Which two of these compounds are alkenes?

(b(iv))[1]

Why are compounds I and K not hydrocarbons?

(c(i))[1]

Give the name of the alcohol with formula $\text{C}_2\text{H}_6\text{O}$.

(c(ii))[1]

A student predicts that density rises as the number of carbon atoms increases. Does the table data support this prediction? Explain your answer.

(c(iii))[1]

Suggest a value for the boiling point of methanol.

(d(i))[2]

Complete the chemical equation for this reaction. $\text{C}_2\text{H}_6\text{O} + 2\text{O}_2 \rightarrow .....\text{CO} + .....\text{H}_2\text{O}$

(d(ii))[1]

State an adverse effect of carbon monoxide on health.

Formulae, functional groups and terminology — practice question