Write the name and structure of one of the common initiators used in free radical addition polymerisation.
For polymerization reaction, an initiator is required. The initiator may be an cation, anion or free radical. So the type of polymerization in which free radical is used as an initiator is known as free radical addition polymerization. The common free radical initiator used is benzoyl chloride.
The structure of benzoyl chloride is as follows:
The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:
| Experiment |
A/ mol L - 1 |
B/ mol L - 1 |
Initial rate/mol L - 1 min - 1 |
| I | 0.1 | 0.1 |
2.0 × 10 - 2 |
| II | -- | 0.2 |
4.0 × 10 - 2 |
| III | 0.4 | 0.4 | -- |
| IV | -- | 0.2 |
2.0 × 10 - 2 |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
For polymerization reaction, an initiator is required. The initiator may be an cation, anion or free radical. So the type of polymerization in which free radical is used as an initiator is known as free radical addition ...
Step-by-step explanation:
• For polymerization reaction, an initiator is required
• The initiator may be an cation, anion or free radical
• So the type of polymerization in which free radical is used as an initiator is known as free radical addition polymerization
• The common free radical initiator used is benzoyl chloride
•
This question is important because it tests key concepts from the NCERT syllabus and is frequently asked in CBSE exams.
This question is based on core NCERT concepts explained in the chapter and should be revised thoroughly before exams.
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
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