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प्रश्न
Assertion (A): Cotton is ironed at 400°F.
Reason (R): Cotton is a natural fibre made of cellulose which possess good heat resistance properties.
विकल्प
A is true but R is false.
Both A and R are not true.
A and R are true and R is the reasoning for A.
Both A and R true but R is not the reasoning for A.
उत्तर
A and R are true and R is the reasoning for A.
Explanation:
Cotton's strength and structure are derived from cellulose, a natural polymer. It has decent heat resistance compared to other synthetic fibers.
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