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Question

Mordant is a chemical that combines and by helping the fibre absorb the dye. Choose answers in alphabetical order.

A
dye
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B
oil
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C
seed
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D
fibre
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Solution

The correct options are
A dye
D fibre
Indians, from early times, knew the art of producing permanent colour on cotton using vegetable dyes. The world did not know about cotton not absorbing dyes without a preparatory process of using mordants, a chemical that combines dye and fibre by helping the fibre absorb the dye.

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