GATE (TF) Textile 1991 Question Paper Solution | GATE/1991/TF/11 | Section A

Question 11 (Textile Engineering & Fibre Science)

Indigosal O is suitable for wool since

(A)it has good affinity for this fibre
(B)it can be applied from an alkaline bath
(C)it can be developed by means of acidified sodium nitrite
(D)none of the above
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