Question 1

Paper 2Medium6 marks

Two organic compounds, P and Q, are represented by skeletal formulas in Figure 1.

OHPOQ
(a)

State the functional group present in each of P and Q.

[2]
(b)

Determine the molecular formula shared by P and Q.

[1]
(c)

Use Figure 1 and your answer to (b).

(i)

State whether P and Q are saturated or unsaturated.

[1]
(ii)

A student argues that P and Q must belong to the same class of organic compounds because they have the same molecular formula. Explain why this conclusion is not justified.

[2]

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