Question

which fibre burns poorly without flame​

Answer 1

Rayon : Same as cotton, but burns slowly without flame with slight melting; leaves soft black ash. Silk: Burns slowly, but does not melt. It shrinks from the flame. It has the odor of charred meat (some say like burned hair).

Answer 2

Rayon : Same as cotton, but burns slowly without flame with slight melting; leaves soft black ash. Silk: Burns slowly, but does not melt. It shrinks from the flame. It has the odor of charred meat (some say like burned hair).

Explanation:

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