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Alizarin belongs to the class of

$(a)\;Vat \;dyes\qquad(b)\;Mordant\;dyes\qquad(c)\;Basic\;dyes\qquad(d)\;Reactive\;dyes$

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Answer : Mordant dyes
Explanation :
Alizarin belongs to the class of Mordant dyes since it gives a bright red colour with aluminium and a blue colour with barium as binding agent .
answered Mar 17, 2014 by yamini.v
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