GATE (TF) Textile 2021 Question Paper Solution | GATE/2021/TF/40

Q.40Determine the correctness or otherwise of the following Assertion [a] and Reason [r]
Assertion: Nylon is dyed with acid dyes in the acidic medium.
Reason: Nylon assumes positive charge in the acidic medium and thus, attracts the negatively charged acid dye molecules.
(A)Both [a] and [r] are true and [r] is the correct reason for [a]
(B)Both [a] and [r] are true and [r] is not the correct reason for [a]
(C)Both [a] and [r] are false
(D)[a] is true but [r] is false
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