Fill in the blanks with appropriate words :
Synthetic fibres prepared using raw materials of petroleum origin are called ________ .

Explanation

To fill in the blank in the statement "Synthetic fibres prepared using raw materials of petroleum origin are called ________," we can follow these steps:

1. **Identify the Type of Fibres**: We need to understand what type of fibres are being referred to in the question. The question specifies "synthetic fibres," which are man-made fibres as opposed to natural fibres.

2. **Understand the Raw Materials**: The question mentions that these synthetic fibres are prepared using raw materials that come from petroleum. This indicates that the source of these materials is important for identifying the correct term.

3. **Recall Relevant Terminology**: In chemistry and materials science, the term that describes synthetic fibres made from petroleum-derived materials is "petrochemicals." Petrochemicals are chemical products derived from petroleum or natural gas.

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