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Which of these functional groups can react together to form a condensation polymer? A -C=C- and -COOH B -C=C- and -NH2 C -COOH and -NH2 D -OH and -NH2 - OCR Gateway - GCSE Chemistry - Question 12 - 2021 - Paper 1
Question 12
Which of these functional groups can react together to form a condensation polymer? A -C=C- and -COOH B -C=C- and -NH2 C -COOH and -NH2 D -OH and -NH2
Worked Solution & Example Answer:Which of these functional groups can react together to form a condensation polymer? A -C=C- and -COOH B -C=C- and -NH2 C -COOH and -NH2 D -OH and -NH2 - OCR Gateway - GCSE Chemistry - Question 12 - 2021 - Paper 1
Step 1
-COOH and -NH2
Answer
To identify the functional groups that can form a condensation polymer, we first need to understand the mechanism of condensation polymerization.
In condensation polymerization, two functional groups react, resulting in the elimination of a small molecule, often water. The relevant functional groups for this process include carboxylic acids (-COOH) and amines (-NH2), which can react together to form amides:
This equation shows that when a carboxylic acid reacts with an amine, it forms an amide linkage and releases water, illustrating a condensation reaction.
Thus, among the options given, the correct functional groups that can react together to form a condensation polymer are:
C - -COOH and -NH2.