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Subject :NSO    Class : Class 8

Which of the following statements is/are correct?
I. Natural fibres burn to form a residue on heating.
II. Wool and silk burn with smell of burning hair.
III. Silk being a natural fibre absorbs less water than nylon.
IV. Natural fibres are moth resistant.
V. Synthetic fibres maintain a permanent crease and do not get crumpled.

AI and V only
BI, II and V only
CII, III and IV only
DII and V only

Ans 1:

Class : Class 8

Ans 2:

Class : Class 4
Silk burns with a smell of charred meat

Ans 3:

Class : Class 8

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