Question

Given below are two statements one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The uneven dyeing leads to the poor appearance in case of cotton fabric. Reason (R): The mature cotton fibres poses the problems in uniform dyeing. In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Mature cotton = Good dyeing. Immature (Dead) cotton = Poor, patchy dyeing.

Answer 1

The Correct Option is C

Concept: Dyeing uniformity (levelness) in cotton depends on the maturity of the fibers.

Step 1: Analyzing Assertion (A).
Uneven dyeing (patchiness or speckiness) significantly degrades the visual quality and commercial value of cotton fabric. Thus, (A) is correct.

Step 2: Analyzing Reason (R).
In reality, immature cotton fibers (which have thin cell walls and lack a secondary cellulose layer) are the ones that cause dyeing problems. They often form "dead cotton" or neps that appear as light specks after dyeing because they cannot absorb dye as well as mature fibers. Therefore, the statement that mature fibers pose problems is incorrect.